# 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 737
1. ## maths

a boy was employed on the understanding that he was to receive 'p' paise for everyday he worked and 'q' paise for everyday when there was no work for him. after 'd' days his earnings amounted to Rs.'x'.how many days had he worked?

asked by sagar on June 8, 2012
2. ## Physics

A man pushes a lawn mower on a level lawn with a force of 203 N. If 26% of this force is directed downward, how much work is done by the man in pushing the mower 7.0 m?

asked by Chase on November 1, 2016
3. ## English

Rewrite the following sentence to make it more concise: The referendum was held by the government in the month of August. The Government held a referendum in the August. Please check my work.

asked by Tim on February 4, 2017
4. ## music urgent!!!!!!!!!!!!

i need help with annotating a piece of idian bollywood music is there anyone who can help me? xXx uzi xXX hi hi back can can you help me with my music course work that is left before it is complete??? xXx uzi xXx

asked by uzma on January 18, 2007
5. ## Life orentation

Make six suggestion on how to combat the violations of human rights(right to education,health and work) and indicate any arganisation you have come about in your research and indicate how they combat the human rights violations

asked by Happiness on April 17, 2016
6. ## Physical science

A man pushes a lawn mower on a level lawn with a force of 192 N. If 50% of this force is directed downward, how much work is done by the man pushing the mower 7.3 m?

asked by Liz on September 9, 2012
7. ## physics

A woman does 340 J of work to move a table 4 m across the floor. What is the magnitude of the force that the woman applied to the table if this force is applied in the horizontal direction?

asked by Anonymous on February 2, 2010
8. ## physics

23.1 .. A point charge q 1 = +2.40 mC is held stationary at the origin. A second point charge q 2 = -4.30 mC moves from the point x = 0.150 m, y = 0 to the point x = 0.250 m, y = 0.250 m. How much work is done by the electric force on q 2 ?

asked by gopi on March 6, 2018
9. ## Science

A man pushes a lawn mower on a level lawn with a force of 203 N. If 44% of the force is directed horizontally, how much work is done by the man in pushing the mower 5.4 m?

asked by KeKe on September 19, 2012
10. ## physics

A woman does 340 J of work to move a table 4 m across the floor. What is the magnitude of the force that the woman applied to the table if this force is applied in the horizontal direction?

asked by Anonymous on February 2, 2010
11. ## physics

A 62.0-kg baseball player slides 3.40 m from third base w/ a speed of 4.35 m/s. If the player comes to rest in third base , (a) how much work was done on the player by friction? (b) what was the coefficient of the kinetic friction between the player and

asked by Tina on April 10, 2008
12. ## Accounting

During the sixth month of the fiscal year, the program director of the Westchester Home-Delivered Meals (WHDM) program decides to again recompute fixed costs, variable costs, and the BEP using the high–low method. Here are the number of meals served and

asked by Betty on February 7, 2010
13. ## Financing

During the sixth month of the fiscal year, the program director of the Westchester Home-Delivered Meals (WHDM) program decides to again recompute fixed costs, variable costs, and the BEP using the high–low method. Here are the number of meals served and

asked by shannon on February 19, 2009
14. ## math, algebra

can someone correct this for me... Problem : Business and finance. Linda Williams has just begun a nursery business and seeks your advice. She has limited funds to spend and wants to stock two kinds of fruit-bearing plants. She lives in the northeastern

asked by jasmine20 on December 29, 2006
15. ## math help

I need help factoring this out 6a^2-5a+1 okay so now after revising (3a-1)(2a ) the last part i don't know how to actually get -5 and 1 Factoring is not my strong suit. However, by the term "+1", you know that both of the signs in your parenthesis are

asked by jas20 on March 2, 2007
16. ## Physics

A 5.00 x 102 kg hot air balloon takes off from rest at the surface of the earth. The buoyant force lifts the balloon straight up, performing 9.70 x 104 J of work on the balloon. At the instant the balloon's upward speed is 4.08 m/s, the balloon will be

asked by Help on November 18, 2014
17. ## Physics questions ( I posted all my work)

A uniform rod AB is 1.2 m long and weighs 16N. It is suspended by strings AC and BD. A block P weighing 96N is attached at E, 0.30N from A. The tension force in the string BD has a magnitude. My work: Taking torque around AC string

asked by Diane on December 10, 2006
18. ## chemistry

How many grams of NaCl should be added to 250 grams of water to make a 0.40 m solution? I got 19 grams. this is how I got it. first I found the mass of water = 18g then I converted that to mols 18/250 = .0072. I subtracted 0.072 - 0.40 = 0.328 I found the

asked by davis on March 24, 2007
19. ## chemistry

10 ml sample of vinegar an aqueous solution 0f acetic acid( HC2H3O2) is titrated with 0.5062 M and 16.58 ml is required to reach equivalence point what is the molarity of the acetic acid b. if the density of vinegar is 1.006 g/cm3 what is the mass percent

asked by mathew on September 30, 2014
20. ## chem.

A 10.0 mL of vinegar, an aqueous solution of acetic acid (HC2H3O2), is titrated with .5062M NaOH, and 16.58mL is required to reach the equivalence point. A. What is the molarity of the acetic acid? B. If the density of the vinegar is 1.006 g/cm^3, what is

asked by Aditya on March 7, 2008
21. ## Chemistry

The Label on a one pint bottle of water lists the following components. If the density is the same as pure water and you drink 3 bottles of water in one day, how many milligrams of each component will you obtain? 1) calcium 29 ppm 2)fluoride .09 ppm

asked by Susan on September 7, 2008
22. ## Statistics

a little bit rusty on statistics, i generally know how to set up the problems but not how to solve. thanks for any help you can give, especially with the integration bounds I'm confused with. X & Y have a joint distribution, and the following is the joint

asked by Kay on September 17, 2007
23. ## Algebra 1 HELP!!

4n=28n-3 i have to solve for n Move the letters to one side and the numbers to the other. Change sign when doing so. 4n-28n=-3 Combine terms. -24n=-3 Multiply everything by -1 24n=3 Now divide both sides by 24 24n/24 = 3/24 n=1/8 I hope this helps. What

asked by marie on November 1, 2006
24. ## Chemistry

Hi, This is one of my chem hw problems. Does anyone have links to websites that might help me solve this..or equations? It sounds like there are two parts to the question but I'm not sure. Volts and Joules? 1. Electrons are used to determine the structure

asked by Anne on October 27, 2008
25. ## math

I forgot how to solve this grade 11 review package question 5) A graph representing the vertical height in metres after t seconds, has been modelled by the equation f(t)= -4.9t^2+6t+0.5. a) how long is the ball in the air? b) when does the ball reach its

asked by prethy on September 8, 2010
26. ## Cost Accounting

Please somebody can help with the steps of this problem: Thank you (Comprehensive) Construction Company uses a job order costing system. In May 2008, company made a \$1,650,000 bid to build a pedestrian overpass over the beach highway in Gulfport,

asked by Josephine on August 23, 2010
27. ## Org. Chem.

Draw a mechanism that explains how the nitro-substituted aromatic products observed in your reaction were formed. My sample was nitrodiphenylmethane and three peaks were observed using GC/MS. I wasn't sure how to determine what the peaks meant exactly. We

asked by CMM on February 18, 2010
28. ## Pre Algebra

If I blink 22 times in 10 seconds, how many times would I blink in 1,000,000 seconds. Need an algebraic or? expression to show my calculation. I have an answer of 2,200,000 blinks in 1,000,000 seconds

asked by Susan on January 22, 2013
29. ## Biology!!!!!

7)State whether the following sentences are true or false. Rewrite them if they are false. a) Every chemical reaction taking place in cells is regulated by a specific enzyme. b) Enzymes work inside cells only. c) Enzymes are carbohydates d) An active site

asked by Nicole on October 14, 2012
30. ## Science

Still very confused 5. Darth Vader unleashed the power of the DARK SIDE (1225 watts) on the unsuspecting Jedi.If he did 727 joules of work how much time did it take? First I tried to divide it did not make sense then I multiple and did not make sense if I

asked by Essence Forbes on December 2, 2017
31. ## Physics

I am confused as to how light would work in the following question: Some very efficient streetlights contain sodium vapour under high pressure. They produce light that is mainly yellow with some red. Should a community having these lights buy dark blue

asked by Corin on April 20, 2008
32. ## math

(X^2-1)/(x-1) = (x+1)(x-1)/(x-1) = x+1. If you then subtract your original number, x, you are left with 1. The reason this doesn't work with 1 is that you would have 1-1=0 in the denominator and you cannot divide by zero. This uses the skill of simplifying

asked by Anonymous on November 4, 2008
33. ## English

Choose the answer that best matches the word "metamorphosing." When London speaks of Buck metamorphosing, he means that Buck a. lost his appetite b. changed into a different kind of dog*** c. dominated the sled dog team d. returned to his homeland Just

asked by Kaai97 on November 19, 2015
34. ## calculus

I've tried this problem about 20 times and a bunch of different ways and I can't seem to get it right. The problem is: Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified axis. Where y=1/(x^3), y=0,

asked by bre on October 20, 2009
35. ## Calculus

Suppose a box on a frictionless ramp is being pulled by a rope with a tension of 350 N making an angle of 50° to the horizontal ground. If the angle of incline of the ramp is 20°, and the box is pulled 5 m, determine the amount of work done. Hint: Draw a

asked by Hugsy on June 30, 2008
36. ## statistics

A job in an insurance office involves telephone conversations with policyholders. The office manager estimates that about half of the employee’s time is spent on the telephone. How many observations are needed in a work sampling study to estimate that

asked by rodrigo on September 29, 2011
37. ## math

Ashley recently opened a store which sells only natural ingredients. She wants to advertise her products by distributing bags of samples in her neighborhood. It takes one person 2 minutes to prepare one bag. How many hours will it take to prepare 900 bags

asked by Izzy on November 19, 2014
38. ## Calculus

Book works out integral of sqtr(a^2-x^2)dx as a^2/2*arcsin(x/a)+x/2*sqrt(a^2-x^2) by taking x=a sin theta, and advises to work it out using x=a cos theta. I did and got the first term as -a^2/2*arccos(x/a)and the same second term. This means arcsin

asked by ms on October 3, 2013
39. ## statistics

An economist wants to estimate the mean income for the first year of work for college graduates who majored in biology. How many such incomes must be found if the economist wants to be 95% confident that the sample mean is within \$500 of the true

asked by Panther on April 14, 2013
40. ## physics

a farmer drives a 0.100 kg iron spike with a 2.00 kg sledge hammer. the sledge hammer moves at a speed of 3.00 m/s and comes to rest on the spike after each swing. assuming all the energy is absorbed by the nail and ignoring the work by the nail, how much

asked by tulip on January 12, 2013
41. ## Physics

In an unusual return to space, Astronaut Sally Ride is conducting repair work on the Hubble Space telescope. She throws a hammer of mass 500.0g forward at 20.0m/s. The astronaut, mass 80.0kg, recoils in the opposite direction. What is Sally's recoil

asked by Sarah on April 29, 2012
42. ## Physics

Consider two charges Q and q separated by a distance d . If the potential at the point p (which is in right side from both charges) is V=0 , we can conclude (one answer only): a)no net force would act on a test charge located at P . b)Q and q must be same

asked by sio on November 7, 2013
43. ## Physics

What is the spring constant of a spring that stores 25 J of elastic potential energy when compressed by 7.5 cm from its relaxed length? I know that I should chnage 7.5 cm into .075 m. Is this equation correct? U(x)= 1/2kx^2. I should have gotten 89N/cm for

asked by Jamie on January 2, 2007
44. ## Physics ASAP PLease

Consider two charges Q and q separated by a distance d . If the potential at the point p (which is in right side from both charges) is V=0 , we can conclude (one answer only): a)no net force would act on a test charge located at P . b)Q and q must be same

asked by sio on November 8, 2013
45. ## math

Ashley recently opened a store which sells only natural ingredients. She wants to advertise her products by distributing bags of samples in her neighborhood. It takes one person 2 minutes to prepare one bag. How many hours will it take to prepare 900 bags

asked by Shohanur on October 26, 2014
46. ## Physics

Consider two charges Q and q separated by a distance d . If the potential at the point p (which is in right side from both charges) is V=0 , we can conclude (one answer only): a)no net force would act on a test charge located at P . b)Q and q must be same

asked by sio on November 8, 2013
47. ## math

Mr mcmurry takes 4327 sips of mountain Dew each day each time he takes a drink he moves the bottle 45cm to his mouth and another 45cm back to the table if the bottle has a mass of 567grams (5.1Newtins ) how much work does Mrmurry do during the day? How do

asked by Barbara on October 25, 2009
48. ## Chemistry

My question was A person’s blood cholesterol level is 245 mg/dL. (1g=1000mg; 1L=1000mL). Show all calculations. What is the cholesterol concentration in ppT (part per thousands) and ppm (parts per million)? And your answer was For ppm just remember that

asked by anonymous on July 23, 2019
49. ## last question sci. :)

road salt has been dropped on grass. keep osmosis in mind, what would happen? answer: since the road salt is hypertonic solution and therefore the water in the grass would diffuse into the road salt thus causing the grass to die. Is this right? What should

asked by Lena on September 23, 2008
50. ## Science

road salt has been dropped on grass. keep osmosis in mind, what would happen? answer: since the road salt is hypertonic solution and therefore the water in the grass would diffuse into the road salt thus causing the grass to die. Is this right? What should

asked by Lena on September 23, 2008
51. ## Algebra

A number consist of 3 digits.The middle digit is 0 and the sum of the first and last digits is 13.If the digits are reversed the number is increased by 297.Find the original number.MY SOLUTION: let x=the 1st digit & y=last digit x+y=13 i.e eqn1 & pls help

asked by Oduro Hayford on August 20, 2016
52. ## Math

How do you solve this by substitution? x=6y+2 3x-18y=4 This is the answer I get: 3(6y+2)-18y=4 18y+6-18y=4 18y+1818y+6-18y+18y=4 36y=10 36 36 Y=5/18 3x-18(5/18) =4 3x-5+5= 4+5 3x= 9 3 3 X=3 (3, 5/18)

asked by Please help on March 23, 2014
53. ## PE

What reason do studies show why more people with high blood pressure and diabetes live In the suburbs than in the city? 1.There are much better doctors in the city who treat those diseases more effectively. 2.(People re not as physically active and rely on

asked by Help I need somebody not just anybody on March 2, 2017
54. ## Math repost for Andy

math - Andy, Thursday, October 25, 2007 at 7:37pm can you please help me with this math problem? If you can here is the question: Seventy-five years ago, pharmacists weighed medicine on balances like the ones you have been using. The mass pieces were very

asked by Writeacher on October 25, 2007
55. ## Chem Please Help

I know how to write elctron configurations but I am having problems with electron config. of main group ions. Problem: Using condensed electron configurations, write reactions for the formation of the common ions of the following element: Iodine (Z=53)

asked by Sami on November 24, 2007
56. ## Chemistry

In our lab we had to experiment with an apparatus in order to find such things as the percent of KClO_3 in the solution.. Assume that you heated your sample too rapidly and some of the sample spattered onto the rubber stopper of the test tube. Will your

asked by Liz on March 3, 2012
57. ## Chemistry

If a 2.6 g of weak diprotic acid were dissolved in 100 mL of water and a 10 mL aliquot of this solution required 21.6 mL of 0.1 M NaOH to reach the first endpoint, what are the equivalent and formula weights of H2A? I think I first need to find the moles

asked by jhon on February 16, 2012
58. ## Chemistry

During recrystalization of acetanilide, an orange solution of a compound in hot alcohol was treated in activated carbon and then filtered through a filter paper. On cooling the filtrate gave gray crystals, although the compound was reported to be

asked by Alice on June 17, 2018
59. ## Chemistry

At 300.K and 1.00 atm, assume that 25 mL of NO gas reacts with 22 mL of oxygen gas and excess water to produce nitric acid according to the following equation: 2NO(g)+(3/2)O2(g)+H2O(l)-->2HNO3(g) If all of the nitric acid produced by this reaction is

asked by Claire on March 31, 2010
60. ## Chemistry

If an Alka-Seltzer tablet has a mass of 4.953 g, and an Erlenmeyer flask containing an HCl and water solution weighs 160.351 g, what is the percent by mass of NaHCO3,in the tablet if the Erlenmeyer flask and its contents weigh 164.027 g after reaction?

asked by Me on January 25, 2011
61. ## calculus

A satellite is free falling from a distance (d) of the surface of the moon with radius (R), with zero initial velocity. At what rate does the area of the portion of the moon visible to the satellite decrease at a time (t) after the free fall starts? When

asked by Saif on December 2, 2015
62. ## Chemistry

At 298.K and 1.00 atm, assume that 22 mL of NO gas reacts with 18 mL of oxygen gas and excess water to produce nitric acid according to the following equation: 2 NO(g) + 3/2 O2 (g)+ H2O(l)?? 2 HNO3(g). If all of the nitric acid produced by this reaction is

asked by Ricky on October 26, 2010
63. ## Socialstudies

1. What was described as the ' hardest work " slaves did ? ( 1point ) A. work in the rice fields B . Work in the tobacco fields***** C. Work in the lumber business D. Work loading and unloading ships in port 2. which of the follow best describes the social

asked by Please help by checking my answers(I'm reposting) on February 4, 2016
64. ## history

1. What was described as the ' hardest work " slaves did ? ( 1point ) A. work in the rice fields B . Work in the tobacco fields C. Work in the lumber business D. Work loading and unloading ships in port 2. which of the follow best describes the social

asked by crazygood on February 18, 2014
65. ## history

1. What was described as the ' hardest work " slaves did ? ( 1point ) A. work in the rice fields B . Work in the tobacco fields C. Work in the lumber business D. Work loading and unloading ships in port 2. which of the follow best describes the social

asked by lovey on February 23, 2014
66. ## Math

A truck with 36-in.-diameter wheels is traveling at 55 mi/h. Find the angular speed of the wheels in rad/min, *hint convert miles to inches & hours to minutes How many revolutions per minute do the wheels make? • This question is 2 parts. I can't

asked by Jen on September 2, 2014
67. ## history

show how immigration has helped to shape America and describe some of the barriers immigrants have faced in their struggle for equality i'm stuck on this question my teacher said the best answer will begin with colonists and go up through Irish/ Asian

asked by history on April 21, 2009
68. ## Science/English

Writeacher, now that the grammar is OK, I just want to know if everything is correct from a scientific point of view. Could you please ask your science teacher, Bob Pursley? 1) After meeting with the engineer ......... we became interested in exploring the

asked by Henry2 on February 15, 2012
69. ## Math

While organizing his bookshelf, Michael noticed that he had 8 more science-fiction novels than spy novels. If he owns 26 science-fiction and spy novels, how many of each type of novel does he own? Explain how you found your solution.

asked by Ema on September 15, 2012
70. ## Chemistry

What is the freezing-point depression of water in a solution of 100g of sucrose, C12 H22 O11, and 500g of water? (Molar freezing point depression constant for water is -1.86°C/m.)

asked by Anonymous on August 24, 2017
71. ## chem132

When 15.0 g of ethyl alcohol, C2H5OH, is dissolved in 750 g of formic acid, the freezing point of the solution is 7.20 C. The freezing point of the pure formic acid is 8.40 C. Evaluate Kf for fomic acid.

asked by bree on July 16, 2010
72. ## business

Your manager has asked that you reach out to three senior leaders in the organization to build a better understanding of their needs so that your department can better align themselves with these executives’ and build partnerships for new work. Where

asked by Dave on January 10, 2011
73. ## physics

Ok, so I know I already posted another really long question but we have not learned this yet and are expected to do homework on it. Please help me. An ideal monotonic gas is compressed at a constant pressure of 0.9 atm from 14 L to 3.5 L. Note: Atmospheric

asked by anonymous on April 11, 2012
74. ## Reading

1.Which word is most similar to morose? sensitive silly unhappy*** stubborn 2. In which of these lines is the meaning of the word gratitude best expressed? Why its old Fezziwng! Bless his heart; its Fezziwing alive again! The happiness he gave it quite as

asked by Anonymous on April 14, 2015
75. ## Math

Chocolate Box Company is going to make open-topped boxes out of 3 × 11-inch rectangles of cardboard by cutting squares out of the corners and folding up the sides. What is the largest volume box it can make this way? (Round your answer to one decimal

asked by Nathan on October 19, 2015
76. ## math

I was wondering if someone could double check my work on a test I'm self correcting. Here's the problem, it has to do with Cramer's Rule. 24x + 6y = 11 24x + 60y = -25 I ended up finding the base determinant (D), and then dividing Dx and Dy by D. My

asked by Catherine on December 19, 2012
77. ## Physics

Hello, During a lab where you race 2 cars downward on a 30* angle slope, we got graphics of the different energies in play. (Gravitational, kinetic and Total in depending on time). Afterwards, we need to answer this question: Calculate non-conservative

asked by Jimmy on January 9, 2012
78. ## physics

A jumbo jet taxiing down the runway receives word that it must return to the gate to pick up an important passenger who was late to his connecting flight. The jet is traveling at 45.0 m/s when the pilot resieves the messae. What is the acceleration of the

asked by confusedd! on September 10, 2007
79. ## English

Please correct me if I'm wrong on any of this thanks! From the words below supply the words that complete the sentences. Sumptuous, Homogeneous, Surreptitious. A. Despite their many differences, the population was a HOMOGENOUS group that, at bottom,

asked by Anonymous on April 5, 2014
80. ## college physics

When two objects of unequal mass are hung vertically over a frictionless pulley of negligible mass, as shown below, the arrangement is called an Atwood machine. Determine a) the magnitude of the acceleration of the two objects and b) the tension in the

asked by lacrosse on February 11, 2012
81. ## Algebra

Can you explain how to find the solution of 3x^2-2x+5, using the quadratic formula? I got it down to (2 +/- sq. root of -56)/6. But my book then reduces that to (2 +/- 2 times the sq. root of 14i)/6. But I think in place of the 2 and the sq. root of 14 it

asked by Leyla on November 30, 2009
82. ## Math

Lilla read 1/5 of her book last week. This week she read 3 times as much as she read last week. Write an expression to show how much of her book she has left to read. Then simplify the expression.

asked by Caden on February 22, 2017
83. ## Math Plz help me

I want to know about the ROund off rule : my quiz say Round you answer two decimal place. answer 28.6123 second quiz show ,39.70 .. Now further i need to round 2 decimal place . plz Thanks in advance .

asked by shamaila on September 4, 2011
84. ## smallest algebra

Let F be a family of subsets of a set X such that empty set is the element of F. A subset A of X belongs to F1 if and only if either A is a subset of F or complement of A is the subset of F. A subset B of X belongs to F2 if and only if B is a finite

asked by sxxx123456 on January 15, 2009
85. ## Algebra 2

Ordinary corn syrup contains dextrose sugar. A process called enzyme conversion changes it into a syrup that is 42% fructose. This new syrup can be further treated with fractionation columns to make a syrup that is 95% fructose (high fructose corn syrup).

asked by Anonymous on February 13, 2014
86. ## Music

Music Lesson 13: Building Blocks Unit Test CE 2015 Exploring Music I Unit 2: Building Blocks PerformanceCEMusic-Performance I really need help. 1.Which word do the following notes spell? E.G.G A.EGG B.AGE C.FAD D.BED 2.A sharp raises a note by A.a whole

asked by jonanc_05 on January 22, 2019
87. ## psychology

A production executive,using deductive reasoning as an approach to solving problems,concludes that there is only one correct solution to every problem.The flaw in his reasoning is that: a)it allows his managers to find their own answers b) clear solutions

asked by vedrana on October 16, 2009
88. ## Chemistry

Saccharin (C7H5NO3S) is sometimes dispensed in tablet form. Ten tablets with total mass of 0.5800 g were dissolved in water. They were oxidized to convert all the sulfur to sulfate ion, which was precipitated by adding an excess of barium chloride

asked by Anonymous on September 29, 2013
89. ## creative play

Use the following guidelines to foster inquiry- and problem-based learning. A. Plan activities with a common goal, set firm guidelines, and provide children with specific roles and responsibilities. B. Set firm guidelines, probe children’s thinking, and

asked by bev on June 27, 2017
90. ## Algebra 2

Let (x1,y1) be a solution, other than (0,0), of a direct variation equation. Write an second direct variation equation whosegraph is perpindicular to the graph of the first equation.

asked by Bob on October 12, 2010
91. ## chemistry

what is the concentration of ions in 1.2 M aluminum nitrate solution Al(NO3)3 I count four ions )(one Al, three nitrate), so the conc of ions will be 4 times the concentration.

asked by Anonymous on April 22, 2007
92. ## chemistry

How many grams of water and how many grams of 85 wt% phosphoric acid would be needed to make 100 grams of 37 wt% phosphoric acid solution?

asked by Anonymous on December 7, 2016
93. ## Algebra 1A

How many solution sets do systems of linear inequalities have? Do solutions to systems of linear inequalities need to satisfy both inequalities? If so what are some examples?

asked by Kim on June 26, 2013
94. ## math

How many solution sets do systems of linear inequalities have? Do solutions to systems of linear inequalities need to satisfy both inequalities? In what case might they not?

asked by monet on January 27, 2013
95. ## Algebra 1

How many solution sets do systems of linear inequalities have? Do solutions to systems of linear inequalities need to satisfy both inequalities? In what case might they not?

asked by Austin on September 4, 2012
96. ## Science

Which way do electrons flow when a copper strip is placed in a Zn2+ solution: from the copper to zinc ions or from the zinc ions to the copper?

asked by Nancy on March 11, 2008
97. ## chem

In acidic solution copper(I) ion is oxidized to copper(II) ion by nitrate ion. I got Cu^+(aq) + NO_3^-(aq) --> Cu^2+(aq) + NO_3^2-(aq)but itswrong

asked by sarah on April 17, 2013
98. ## Programming

A sweater is on sale for 25% off the original price. The original price is \$50 write a solution to calculate and print the sale price.

asked by Jonson Anderson on February 28, 2015
99. ## 9th grade

Given Circle D, find the length of segment DB if the measure of segment DE = 25 units and the measure of segment BC = 24 units. Explain your solution.

asked by john on April 22, 2010
100. ## math

One pump fills a tank two times as fast as another pump. If the pumps work together they fill the tank in 18 minutes. How long does it take each pump working alone to fill the tank? mat

asked by Anonymous on June 16, 2016