# Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. 2x + 10y = 58 -14x + 8y = 140

91,718 questions, page 779-
## Algebra

The sum of two consecutive odd integers is 56. A. Define a variable for the smaller integer. B. What must you add to an odd integer to get the next greater odd integer? C. Write an expression for the second integer. D. Write and solve an equation to find

*asked by Bri on October 14, 2011* -
## math

not sure how to solve this problem, Mrs. Smith put $5,000 into a certificate of deposit at the bank that paid 6% interest per year. if the bank paid simple interest on this money, how much would Mrs. Smith earn in a year

*asked by sandra on April 30, 2013* -
## math

not sure how to solve this problem, Mrs. Smith put $5,000 into a certificate of deposit at the bank that paid 6% interest per year. if the bank paid simple interest on this money, how much would Mrs. Smith earn in a year

*asked by sandra on April 30, 2013* -
## conditional probability

Among a group of people, 10% are from NYC and 90% are not. All people from NYC are under 18 years old, and 60% of those not from NYC are also under 18 years old. One person is chosen at random, and he or she is under 18. What is the probability that the

*asked by Tifini on July 17, 2012* -
## Math

translate into a word problem then solve. One fourth of the villains nabbed by the second rate superheroes were jaywalkers. one ninth of those were illegal double parkers too. what fraction of the nabbed villains were both jaywalkers and illegal double

*asked by Hia on January 3, 2017* -
## social studies

what is texas important important service industries I don't know what you mean by "important". Major employers of service type jobs are fast foods, cleaning, police, maintenance and repair organizations (automobile, aircraft, building), and state and

*asked by vicky on May 18, 2007* -
## Enlish

Please help me correct my english grammar below. Dear Sir, Good day, thank you again for your effort in helping me to hire and working back in the company it would be a great gratitude to you. TO pay you back i would do my best to work hard and contribute

*asked by jessie on October 23, 2018* -
## english

hey people!! im new here and i just got an essay to do on english altough its the first day of school!! please guys i really need your help.. its a essay on the following topics: 1-summer 2-love is not all it's made out to be 3-a glorious sunset 4-stories

*asked by wayne on January 21, 2009* -
## Physics Check My Work Please

Determine the minimum angle at which a roadbed should be banked so that a car traveling at 20 m/s can safely negotiate the curve if the radius of the curve is 200m. * Data: v=20 m/s r=200m *Formula TAN(theta)=v^2/rg *Solution TAN(theta)=(20

*asked by Jose Luis on December 3, 2015* -
## Please Check My Work: College Physics

Determine the minimum angle at which a roadbed should be banked so that a car traveling at 20 m/s can safely negotiate the curve if the radius of the curve is 200m. * Data: v=20 m/s r=200m *Formula TAN(theta)=v^2/rg *Solution TAN(theta)=(20

*asked by Jose Luis on December 3, 2015* -
## chemistry

A reaction is run in which dissolved silver ions are reduced in the presence of solid copper. THis reaction can be used to produce a silver coating on a copper wire frame. .249g of copper wire was placed in a 100 mL of a 0.500 M solution of silver nitrate.

*asked by mmmmm on April 19, 2011* -
## Chemistry

In a coffee-cup calorimeter, 1.50 g of NH4NO3 is mixed with 72.0 g of water at an initial temperature of 25.00°C. After dissolution of the salt, the final temperature of the calorimeter contents is 23.65°C. Assuming the solution has a heat capacity of

*asked by Courtney on February 19, 2015* -
## Math help

You plan to make 24 equal quarterly payments (payments are at the end of each period) into an account to pays 8% (per year compounded quarterly). If you need $5,000 at the end of 10 years (i.e. 4 years after the last payment is made into the account), how

*asked by Nancy on October 23, 2014* -
## Algebra

I am having trouble with -4less than or equal to -3x-13 less than or equal to 26 -4 < -3x-13 < 26 Add 13 to all three parts of the inequality. 9 < 3x < 39 Divide all three parts by 3. 3 < x < 13 The < signs should all be "less than or equal, but I can't

*asked by Kim on March 14, 2007* -
## Science - Electrochemistry

In an experiment 0.0500 M AgNO3 was used to titrate 20 mL of 0.12 M NaCl solution. When silver electrode is used together with the pH electrode to measure potential at each point during the titration, the potential measured at equivalence point is 0.055 V.

*asked by Sarah Lee on November 9, 2016* -
## Chemistry

In a coffee-cup calorimeter, 1.70 g of NH4NO3 is mixed with 76.0 g of water at an initial temperature of 25.00°C. After dissolution of the salt, the final temperature of the calorimeter contents is 23.71°C. Assuming the solution has a heat capacity of

*asked by Brittney on July 11, 2011* -
## SEKGOSESE

2 forces of 5N and 7N respectively act on an object.a)When will the resultant of two vectors at a maximum?b)when will the resultant of the two vectors be at a minimum?c)What are the maximum and minimum resultants of the two forces?d)Draw a diagram to show

*asked by COSMOS on March 25, 2014* -
## physics

show that the weight of an object on moon is one-sixth of its weight on the earth given mass of earth=5.98*10power24kg, radius of earth=6.37*10power6m. given mass of moon=7.36*10power22kg, radius of moon=1.74*10power6m.

*asked by fatin on June 28, 2015* -
## Vocabulary: Industrial Revolution

Which of the following is the term for an increase in population in cities? a. urbanization b. rural displacement c. urban mobility d. population redistribution I think it is either urbanization or population redistribution. It could be urbanization

*asked by Olivia N J on February 6, 2017* -
## GRADE 12 APPLIED MATH

The Problem: The set T is defined to be all two digit multiples of 2 under 25. 1. How many subsets are there for T? 2. Create a set, V, that is a subset of T. 3. State an element that is in T but not in V. 5 MARKS: 1 mark for showing work in a) 1 mark for

*asked by V on January 27, 2018* -
## Physics

Jemima is sanding some floorboards with an electric sander which has a power rating of 360W. Jemima has the sander on for 45 minutes. The Sander is only 55% efficient. The electricity supplier charges 14.8p per kWh. What will be the cost of the 'wasted'

*asked by Need Help ASAP on May 15, 2013* -
## physics please help

one kilwatt/hour (kWh) is the amount of work or energy generated when one kilowatt of power is supplied fr a time of one hour. a kilowatt/hour is the unit of energy used by power companies when figuring your electric bill. determine the number of joules of

*asked by taylor on February 24, 2012* -
## Dot Product 1

A crate is dragged 3m along a smooth level floor by a 30n force applied at 25deg to the floor. Then it is pulled 4m up a ramp inclined at 20deg to the horizontal, using the same force. Then, the crate is dragged a further 5m along a level platform using

*asked by Shaila on August 9, 2010* -
## Math

A box manufacturer wants to produce an open box for which the volume is 2 cubic meters and the length is twice the width. What actual dimensions of he box will require the least amount of material? Work: V = 2m^3 2m^3 = (w)*(2w)*(h) Possible dimensions:

*asked by Kendra on September 14, 2014* -
## Calculus

A rancher wants to make a rectangular pen to house her animals. She will divide it up with 3 fences down the middle parallel to one side. If she has 14000 ft of fencing to work with, what are the dimensions of the pen of greatest area? Width = Length =

*asked by Robin on July 13, 2013* -
## physics

A horizontal force of 804 N is needed to drag a crate across a horizontal floor with a constant speed. You drag the crate using a rope held at an angle of 32° (from the horizontal). (a) What force do you exert on the rope? 1 N (b) How much work do you do

*asked by Anonymous on December 12, 2011* -
## Calculus - Dot Product

A crate is dragged 3m along a smooth level floor by a 30n force applied at 25deg to the floor. Then it is pulled 4m up a ramp inclined at 20deg to the horizontal, using the same force. Then, the crate is dragged a further 5m along a level platform using

*asked by Shaila on August 9, 2010* -
## Chemistry

The atomic mass of chlorine is listed as 35.454 amu on the periodic table. It has two naturally occurring isotopes, Cl-35 and Cl-37. What are the approximate percentages of each? I have no idea how to figure out the percentages for this. I know how to

*asked by Anonymous on June 14, 2009* -
## Science

A 5.0ml aliquot of a sample was transferred to a 25.0ml flask and acidified by addition of 2.5ml of 0.1M HClO4 and diluted to mark. 1.0ml of that solution was mixed with 5.0ml of 1 X 10-4M AYR(Aluminum)dye and 15.0ml ethanol in a 25.0ml flask and diluted

*asked by Eileen on September 2, 2010* -
## Chemistry

When 1.150 grams of an unknown nonelectrolyte dissolves in 10.0 grams of water, the solution freezes at -2.16°C. What is the molecular weight of the unknown compound? Kf for water = 1.86°C/m. -2.16 x m/-1.86 = 1.16 1.16/ .010 kg of water= 116 1.150/116=

*asked by Marcus on February 10, 2013* -
## chemistry

6.2(+_ 0.2) - 4.1 (+_ 0.1 ) + ? [6.2( +_ 0.2) - 4.1(+_ 0.1)] : 9.43(+_0.05) find absolut uncertainty and relative uncertainty. PLEASE HELP:I solved them and got the exact absolute uncertainty like the answer key, but I didn't get right answer of relative

*asked by bun on January 18, 2010* -
## Chemistiy

For the reaction: Ba(OH)2 (s) + 2 NH4Cl (s) → BaCl2 (s) + 2 H2O (l) + NH3 (g) If ammonia gas (NH3) is produced at the rate of 0.72 mol/s, what is the corresponding rate of consumption of ammonium chloride? ANS: NH4Cl is consumed at a rate of 1.4 mol/s,

*asked by Stacy on January 23, 2017* -
## another one ASAP

using the number 5, 8, and 24, create a problem using no more than four operations (addition, subtraction, multiplication, division, square, square root, cube, cube root) where the solution will be an irrational number. explain why the result of your

*asked by recon sniper on November 4, 2013* -
## PHYSICS URGENT URGENT URGENT URGENT HELP NEEDED!!!

A uniform ladder of length 20.0m and weight 750 N is propped up against a smooth vertical wall with its lower end on a rough horizontal surface. The coefficient of friction between the ladder and this horizontal surface is 0.40. (b) Work out and add the

*asked by Valentina on October 30, 2016* -
## Physics

A uniform ladder of length 20.0m and weight 750 N is propped up against a smooth vertical wall with its lower end on a rough horizontal surface. The coefficient of friction between the ladder and this horizontal surface is 0.40. (b) Work out and add the

*asked by Michael on October 30, 2016* -
## PHYICS URGENT URGENT PLEASE PLEASE PLEASE HELP ME!

A uniform ladder of length 20.0m and weight 750 N is propped up against a smooth vertical wall with its lower end on a rough horizontal surface. The coefficient of friction between the ladder and this horizontal surface is 0.40. (b) Work out and add the

*asked by Valentina on October 30, 2016* -
## Algebra

nicole is a jewellery designer. she handcrafts all the jewellery she sells online. with every successful sale, she would make a profit of $30; however, if she makes a mistake during the process, she will lose $10. Nicole is starting work on her next batch

*asked by Michelle on June 15, 2016* -
## grammar

Identify the appropriate punctuation for the phrase in () in the sentence; The song (You Are My Sunshine) always cheers me up. italics quotation marks (my choice) single quotation marks none of the above Identify the sentence in which the word or words in

*asked by lilman on April 18, 2012* -
## physics

*asked by Michael on October 30, 2016* -
## algebra

can someone please help me with my algebra? you don't have to answer every question but I'm very confused, this is algebra 1b unit 6 sample work simplify the rational expressions. state any excluded values 1. 36x^3 / 42x^2 2. -70n^2 / 28n 3. 2r-4 / r-2 4.

*asked by help on June 12, 2019* -
## Physics

Two cars approach along icy streets which meet at a right angle to one another. The cars collide and stick together. One car has a mass of 1200 kg and had a speed of 30 km/h in the +x direction before the collision. The second car has a mass of 1500 kg and

*asked by Anonymous on November 6, 2016* -
## Chemistry - Please help!

Small quantites of hydrogen peroxide can be prepared by the action of an acid on an alkaline earth metal peroxide, such as barium peroxide. BaO2 (s) + 2HCl (aq) -> H2O2 (aq) + BaCl2 (aq) What mass of hydrogen peroxide should result when 15.0g of barium

*asked by Frances on November 5, 2012* -
## poetry

Who put the cat among the pigeons? Unfortunately we are unable to get hold of a copy of the book. Please can anyone help. put/set the cat among the pigeons (British & Australian) to do or say something that causes trouble and makes a lot of people angry or

*asked by dude on January 9, 2007* -
## physics question

How much heat had to be put in during the process to increase the internal energy of the gas by 1.50×10^4 J ? Here is the given information and questions that I have already answered: n=.450 R=8.3145 (Point A) p=2*10^5 v=.010 (Point B) p=5*10^5 v=.070

*asked by marie on December 9, 2007* -
## physics

An air filled parallel plate capacitor has plates of area 0.0406 m^2 and seperation of 2.5*10^-6 m. a)What is the capacitence for the setup? b)Our capacitor is connected to a 550 v battery, how much energy is stored in the capacitor? c) If -1 mJ of work is

*asked by jenish on February 7, 2008* -
## physics

An air filled parallel plate capacitor has plates of area 0.0406 m^2 and seperation of 2.5*10^-6 m. a)What is the capacitence for the setup? b)Our capacitor is connected to a 550 v battery, how much energy is stored in the capacitor? c) If -1 mJ of work is

*asked by Kwang hu111 on February 8, 2008* -
## algebra 1

There are 8 speaking roles in the play. Of the 8 speaking roles, 5 are for males and 3 are for females. After the 8 speaking roles in the play are cast, the remaining cast members will make up the chorus. C. What is the probability that the set of siblings

*asked by Gabs on June 2, 2015* -
## physics

An air filled parallel plate capacitor has plates of area 0.0406 m^2 and seperation of 2.5*10^-6 m. a)What is the capacitence for the setup? b)Our capacitor is connected to a 550 v battery, how much energy is stored in the capacitor? c) If -1 mJ of work is

*asked by Kwang hu111 on February 9, 2008* -
## math

Bill takes a lot of $9,000 and an 8% simple interest rate for 6 years How much interest will Bill pay after 2 years? How much interest will he pay in total for the loan ? $720.00;3,600.00 $1,408.00;4,224.00 $36,000.00;12,000.00 $1,440.00;$4,320.00* check

*asked by fred on February 21, 2019* -
## Chemistry

To determine v max and km of Beta-galactosidase for lactose, the same amount of enzyme (1 ug per tube) was incubated with a series of lactose concentrations under conditions where product concentrations remained negligible. At each lactose concentration,

*asked by Ahmad M. on September 15, 2013* -
## Chemistry

To determine v max and km of Beta-galactosidase for lactose, the same amount of enzyme (1 ug per tube) was incubated with a series of lactose concentrations under conditions where product concentrations remained negligible. At each lactose concentration,

*asked by Ahmad M. on September 15, 2013* -
## Science

To determine v max and km of Beta-galactosidase for lactose, the same amount of enzyme (1 ug per tube) was incubated with a series of lactose concentrations under conditions where product concentrations remained negligible. At each lactose concentration,

*asked by Ahmad M. on September 15, 2013* -
## Physics

A team of dogs drags a 151 kg sled 0.863 km over a horizontal surface at a constant speed. The coefficient of friction between the sled and the snow is 0.223.The acceleration of gravity is 9.8 m/s^2. 1. Find the work done by the dogs. Answer in units of

*asked by Emeera on March 15, 2014* -
## Chem

Mg + O2 ------> MgO if 1.00 g of magnesium is ignited in a flask containing 0.500liters of oxygen at STP, how many grams of magnesium oxide areproduced? what is the name and the amount of the reactant inexcess? My work: 1g Mg/24.3g=0.041 mol Mg; 0.5L

*asked by Lisa on December 30, 2014* -
## Physics/Calculus

It takes a force of 21,714lb to compress a coil spring assembly on a New York City Transit Authority subway car from its height of 8in to its fully compressed height of 5in. A. What is the assemblys force constant? B. How much work does it take to compress

*asked by Tim on May 2, 2014* -
## science

A sled is tied to a tree on a frictionless snow covered hill,as shown.If the sled weighs 77N ,1)Find the magnitude of the tension force T exerted by the rope on the sled .2)Find the magnitude of the normal force applied by the hill on the sled.MY WORK IS

*asked by ZENANDE on May 5, 2016* -
## Gen Chem II

You conduct another experiment on silver condensation. You add 8.0 g of silver nitrate to 200 mL of pure water. You attach a single 850 mAh AAA battery (at 1.3 V) to the electrochemical cell. You can assume that the entire battery charge is useable for

*asked by kyle on November 18, 2013* -
## maths

Two men and six boys can cut a field in 3hours. If the men work at 3/2 times that of the boys, how many men are required to cut the field in 2hrs.

*asked by jay on June 18, 2015* -
## math

Two men and six boys can cut a field in 3 hours. If the men work at 3/2 times that of the boys, how many men are required to cut the field in 2hours?

*asked by jay on June 18, 2015* -
## Physics

A 100-n boulder is sitting on a shelf 0.5 meters above the floor. If the boulder is moved vertically to another shelf 3.0 meters above the floor, how much work has been done on the boulder?

*asked by Nicole on October 15, 2008* -
## math

Andy finished his job 50% more work then Ali in the same amount of time. Both of them take 10 hours to finish a job. How many hours Ali to finish the same job?

*asked by Anonymous on October 26, 2016* -
## Math

Write each of the fractions below as a division expression. Then write each fraction as a whole number or mixed number (I need help with this, because it confuses me as to how to write it as a division expression. Also sorry for no work saw.) 1. 5/4 2.

*asked by Ben on December 15, 2014* -
## Algebra

Stan and Hilda can mow the lawn in 20 minutes if they work together. If Hilda works twice as fast as Stan, how long would it take Stan to mow the lawn alone?

*asked by John's on February 16, 2016* -
## Calculus

Find the average value of the function f(x) 8x^2-9x+8 on the interval [3,5]. Find the value of the x-coordinate at which the function assumes it's average value The average value is ? the x-coordinate is ? Please help and showing work is much appreciated.

*asked by Anonymous on December 7, 2014* -
## math

Tomas calculates that he will need 86 hours to build a boat. He can work on the boat 8 3/5 hours per week. How many weeks will it taje Tomas to build the boat?

*asked by Anonymous on October 28, 2010* -
## Math

Gab and Van can mow the lawn in 40 minutes if they work together. If Gab works twice as fast as Van, how long does it take Gab to mow the lawn alone ?

*asked by Shane on November 24, 2015* -
## FRENCH HELP URGENT!!

I really need to have this paragraph checked to see if there is any mistakes!! My tutor has been sick all week! Thank you! Montreal est une ville exceptionnel que vous aimeriez. Si vous aviez le temps, vous ne regretteriez pas votre decision. Montreal est

*asked by Jevette on January 19, 2009* -
## Math Inequalities

b) Suppose you want to cover the backyard with decorative rock and plant some trees as the first phase of the project. You need 30 tons of rock to cover the area. If each ton cost $60 and each tree is $84, what is the maximum number of trees you can buy

*asked by Anonymous on October 8, 2009* -
## algebra

summer begins from june 1st until august 31st. i can make $6.00 per hour working in a camera shop. $800 is the cost of living expenses. write equations for earning exactly $1000 and $2000 that include hourly wage and the cost of living expenses.solve your

*asked by eon on October 25, 2009* -
## Chemistry

The determination of 4.000 mmol of ZnCl2 is performed gravimetrically by the addition of NaCN solution in a Total volume of 200.00ml. Ksp = 3.0X10^-16 for Zn(CN)2. State and verify all assumption. Assume cyanide does not hydrolyze. a. Derive the COC and

*asked by WILL on December 22, 2012* -
## Biology

I just need somone kind enough to confirm my answers. 1. Membrane bound organelles are also referred to as ... A) vesicles B) channels C) integral proteins D) a and b I think the probable answer is A. 2. Plasmolysis of human red blood cells would occur if

*asked by Angelinna on November 27, 2007* -
## Chemistry

Tarnish on iron is the compound FeO. A tarnished iron plate is placed in an aluminum pan of boiling water. When enough salt is added so that the solution conducts electricity, the tarnish disappears. Imagine that the two halves of this redox reaction were

*asked by John on May 14, 2014* -
## MATH

Use cross products to see if each pair of ratios forms a proportion. Replace each box with = or ≠. 1. seven-fifths and fifteen-tenths ( = ≠ 2. six-eighths and fifteen-twentieths = ≠ Solve each problem. 3. two-thirds equals twelve over x x = 18 x = 12

*asked by deborah on December 3, 2012* -
## Math

Mr. Smith bought shoes for $ 120 and a suit for $ 340. Find the total cost including tax if the tax rate is 5.5%. (a)$ 485.30 (b)$ 48.53 (c)$ 358.70 (d)$ 460 (e)$ 406 I cant figure out how to solve this problem but what i did was added the 120 and 340 and

*asked by Raymond on September 18, 2011* -
## Chemistry

I don't know if i am solving for the number moles of NaI correctly, i multiply .21 by 1.67, is that incorrect? i know that to solve this you have to find the limiting reagent, but i think the problem might be that i am solving for moles wrong. If 210 mL of

*asked by Tokey on April 20, 2010* -
## Science-Astronomy

Using the equation speed=distance/time, calculate the speeds(in km/hour) of a geosynchronous satellite I'm given that the distance from this particular geosynchronous satellite is 36000km from Earth, and orbits Earth 24h. I can not understand how to solve

*asked by Anonymous on October 6, 2008* -
## physics help

The femur is a bone in the leg whose minimum cross-sectional area is about 3.60 10-4 m2. A compressional force in excess of 6.90 104 N will fracture this bone. (a) Find the maximum stress that this bone can withstand. (b) What is the strain that exists

*asked by yoni on November 16, 2010* -
## computer programming c++

c++ program questoin A particular talent competition has 5 judges, each of whom awards a score between 0 and 10 to each performer. Fractional scores, such as 8.3, are allowed. A performer’s final score is determined by dropping the highest and lowest

*asked by james on April 21, 2010* -
## calculus

A metal chain weighs 30 lbs and is 10 feet long. How much work is required to lift one end of the chain to a height of 15 feet (so that the other end of the chain will be at a height of 5 feet)?

*asked by Anonymous on April 17, 2011* -
## chemistry

i am trying to find the average rate of h2? from mastering chemistry home work. part a answer was 0.027m/s and part b answer was 0.054m/s. i cant find part c home answer

*asked by Tasha on April 19, 2011* -
## calculus

A metal chain weighs 30 lbs and is 10 feet long. How much work is required to lift one end of the chain to a height of 15 feet (so that the other end of the chain will be at a height of 5 feet)?

*asked by Steven on December 1, 2011* -
## chemistry / physics

the specific heat capacity of seawater is 3900 j/kg degrees celcius. how much energy is needed to heat 500g of seawater from 20 degrees celcius to 90 degrees celcius? if not i need to know how to work it out

*asked by freddie on October 3, 2010* -
## Statistics

A firm has 82 employees. The average commute distance (that is, the travel distance from home to work) of the employees is 6.2 miles. How many employees have a commute distance of less than 15.5 miles? Select all that are correct. more than 25 more than 35

*asked by A on March 1, 2013* -
## economics 11

The demand and supply schedules for milk are as follows: Price Quantity Demanded Quantity Supplied 10 0 125 8 20 95 6 40 65 4 60 35 2 80 5 a. On the same graph, draw the demand and supply curves. What does the demand curve for a product describe? What does

*asked by Anonymous on September 9, 2014* -
## English

A question on my previous post: is that a mistake to say "he requested me to leave" Can't "request" be followed by "someone to do something"? Can I write the summary below in the present tense though the chapter is in the simple past? 1)The first person

*asked by Henry1 on May 12, 2011* -
## Math

If a worker wants to pack 200 newly harvested mangoes at average size of 3"x2" in delivery boxes .To optimize the cost and profit in packaging , the mangoes must be properly packed in boxes of similar sizes. To systemize counting , there must also be equal

*asked by Claudette on August 17, 2014* -
## Advanced Math

The probability of getting 2 heads and 1 tail when three coins are tossed is 3 in 8. Find the odds of not getting 2 heads and 1 tail. ANSWER: 5:8? Three Coins are tossed. Find the probability that exactly 2 coins show heads if the first coin shows heads.?

*asked by Patrick on June 10, 2009* -
## math

Records from buzz's sawmill show that workers have a 0.02 probability of losing an arm and a 0.03 probability of losing a leg in a year. What is the probability that a worker does not lose an arm? What is the probability that worker does not lose and arm

*asked by Matt on May 18, 2012* -
## Chemistry (URGENT)

Balance the following equations. 3. C12H22O11 + O2 = CO2 + H2O Answer: C12H22O11 + 12 O2 = 12 CO2 + 11 H2O 8. CH3OH + O2 = CO2 + H2O Answer: 2 CH3OH + 3 O2 = 2 CO2 + 4 H2O I balanced all the others just fine. But I seem to be having trouble with these two.

*asked by John on March 1, 2010* -
## Physics

(a) At a certain instant, a particle-like object is acted on by a force F=(2.9N)i-(1.7N)j+(5.7N)k while the object's velocity is v= -(3.2m/s)i+(4.5m/s)k. What is the instantaneous rate at which the force does work on the object? (b) At some other time, the

*asked by Donnie on March 9, 2014* -
## physics

When an electron moves from A to B along an electric field line in Fig. 24-29, the electric field does 3.66 x 10-19 J of work on it. What are the electric potential differences (a)VB - VA, (b)VC - VA, and (c)VC - VB? in the picture there r four field lines

*asked by sweety on April 15, 2009* -
## General Physics

Suppose that the force on the block FT is increased so that the block accelerates (starting from rest) at a = 2.2 m/s2. Now what is the net work done by all the forces acting on the block as it moves a distance of 15 m? 1. Wnet = −1968.75 J 2. Wnet =

*asked by Charles on July 26, 2013* -
## math

A certain medicine is given in an amount proportional to a patient’s body weight. Suppose that a patient weighing 100 pounds requires 125 milligrams of medicine. What is the weight of a patient who requires 200 milligrams of this medicine? I am totally

*asked by jessica on August 24, 2010* -
## PHYSICS - PLEASE HELP

A box of weight w=2.0 N accelerates down a rough plane that is inclined at an angle 30 degrees above the horizontal. The normal force acting on the box has a magnitude n= 1.7 N, the coefficient of kinetic friction between the box and the plane is .30, and

*asked by Anonymous on November 30, 2012* -
## chemistry

Please, can someone help? Evaluate log 1. This is my work up until I have gotten stuck: log 1 1=10^x I can't find a common base for 1 and 10^x. Wow, my apologies, this is algebra, not chemistry. but actually I think they use it in chemistry too... Take the

*asked by Darcy on April 10, 2007* -
## Math

The floor of a round hut is 10m in diameter. A weaver charges $15.50 to make a mat to fit the floor . Find the cost of the mat per square meter . Work- area of a circle = 3.1 * 5*5=77.5 Cost per square meter =77.5\15.5= 5 cents per square meter

*asked by Amina on February 18, 2016* -
## Algebra

A supervisor finds the mean number of miles that the employees in a 9the x has a line on top)department live from work. He finds X=2.9 and s=3. Which statement must be true? z376 is within 1 standard deviation of the mean. z37 is between 1 and 2 standard

*asked by Junior on July 18, 2014* -
## History/admendment 5

Mr.Daly is running short on cash and needs to gas up his car. After filling his car up at the local gas station he takes off without paying. He is put on trial and somehow (miraculously for Mr. Daly) he is found innocent. The prosecution finds new evidence

*asked by Marcus on January 16, 2009* -
## Government questions..

1 --In Japan, the process by which the prime minister can excuse the House of Representatives and trigger a general election is called? 2 -- How did Marx envision communism in its final form? 3 --from the states' point of view, what advantage did revenue

*asked by Jina on January 14, 2007* -
## Business Math

Joyce took out a loan for $21,900 at 12 percent on March 18, 2000, which will be due on January 9, 2001. using ordinary interest, Joyce will pay back on January 9 a total amount of: Answer: $24,068.10 Ordinary interest is 360 March 18 = 77 days January 9 -

*asked by Liz on January 29, 2012*

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