Saturday

May 23, 2015

May 23, 2015

Number of results: 38,865

**algebra**

It takes 30 days to fill a laboratory dish with bacteria. If the size of the bacteria doubles each day. How long did it take for the bacteria to fill one half of dish?
*January 2, 2012 by Anonymous*

**Chemistry**

. An equal mass of which of the following states of matter could completely fill both a 100 mL or 500 ml container? A. Gas B. Liquid C. Mixture D. Solid
*July 14, 2014 by Dulce*

**Chemistry / help**

An equal mass of which of the following states of matter could completely fill both a 100 mL or 500 ml container? A. Gas B. Liquid C. Mixture D. Solid
*July 31, 2014 by Dulce*

**Maths**

Pipe A takes twice the time to fill up the pool as pipe B does.The pool can be filled up in 2 h when both pipes are opened How long will it take each pipe to fill it up alone Plz slove it in Linear equation
*May 27, 2013 by Mary*

**Math**

If it takes 16 faucets 10 hours to fill 8 tubs, how long will it take 12 faucets to fill 9 tubs?
*July 19, 2010 by Pauline*

**Environmental studies**

Are there problems with mitigating impacts on wetlands/streams at an off-site location within the same watershed? i.e. fill a wetland in Maryland and mitigate for it or create it in Virginia. Should the federal government (U.S. Army Corps of Engineers) or a developer decide ...
*June 3, 2008 by Thano*

**math**

colin is buying dirt to fill a garden bed that is a 9 foot by 16 foot rectangle. if he wants to fill it to a depth of 4 inches, how many cubic yards of dirt does he need? if dirt costs $25 per yard, how much will the project cost?
*April 19, 2012 by christian*

**Math **

Colin is buying dirt to fill a garden bed that is a 9 ft by 16 ft rectangle. If he wants to fill it to a depth of 4 in., how many cubic yards of dirt does he need? If dirt costs $25 per yd3, how much will the project cost? (Hint: 1 yd3 = 27 ft3)
*March 25, 2015 by Angie Delgado *

**Advanced Maths **

A reservoir is fed by two pipes of different diameter. The pipe with the larger diameter takes three hours less than the smaller pipe to fill the reservoir. if both pipes are opened simultaneously, the reservoir can fill in two hours. Calculate how long it takes the pipe with ...
*February 15, 2014 by Michelle *

**english**

revise the following sentence to remove all pronoun errors. When a police officer fires his gun, he must fill out a lot of paperwork.
*September 30, 2009 by dee*

**Statistics**

For the following set of scores, fill in the cells. The mean is 70 and the standard deviation is 8. Raw score Z score 68.0 ? ? –1.6 82.0 ? ? 1.8 69.0 ? ? –0.5 85.0 ? ? 1.7 72.0 ?
*November 26, 2014 by KIM*

**Math**

Jim can fill a pool in 30 min, sue can do it in 45 min, Tony can do it in 90min, how long would it take all three to fill the pool together? How would i figure this out?
*June 28, 2012 by Anonymous*

**math**

you fill up 40 gallon pool putting in 2 gallons water every minute, if someone scoops out 1 gallon every 8 minutes, how long would it take to fill the pool?
*January 24, 2013 by Lisa*

**math**

It takes 1 and 3/4 hours to fill a new underground gasoline storage tank. What part of the tank would be fill if the gasoline had been shut off after 1 hours?
*July 16, 2013 by vincent*

**5th grade Math**

One tap can fill a barrel in 3 minutes and another can fill it in 6 minutes. Both taps are turned on together for 1 minute. What fravction of the barrel will be filled in 1 minute?
*April 26, 2009 by Serena*

**Algebra**

One pipe can fill a swimming pool in 8 hours. Another pipe takes 12 hours. How long will it take to fill the pool if both pipes are used simultaneously?
*May 24, 2010 by TinaG*

**Physics**

A 5/8 inch (inside) diameter garden hose is used to fill a round swimming pool 7.3m in diameter.How long will it take to fill the pool to a depth of 1.0m if water issues from the hose at a speed of 0.50m/s ?
*November 5, 2012 by Jokella *

**science**

All living things must carry out certain functions and possess certain structures to survive, grow, and reproduce. The following chart illustrates how humans possess certain structures to carry out these critical functions. Fill in the plant structures that correspond to the ...
*June 4, 2014 by NEED HELP*

**maths**

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?
*February 2, 2014 by Tim*

**MATH MIDDLE SCHOOL**

I love chocolate and coffee. I begin by making one cup of hot chocolate. I drink half of my cup and then I fill the cup with coffee. I stir the new mixture and drink half of the cup and then fill the cup again with coffee. I continue this pattern until I have consumed two full...
*October 10, 2011 by Help Please*

**Solar Energy Help ASAP**

Below you see a plot of an ideal and a non-ideal JV curve. Based on this plot and assuming an irradiance of 1000W/m2, give approximately the numerical values to the questions bellow: I. Estimate the ideal Fill Factor (in %): II. Estimate the non-ideal Fill Factor (in %): III. ...
*October 17, 2013 by Anonymous*

**college**

Use the Microsoft Web site microsoft. com/ windows/ compatibility to research whether a home or lab PC that does not have Windows Vista installed qualifies for Vista. Fill in the following table and print the Web pages showing whether each hardware device and appli-cation ...
*December 1, 2010 by Anonymous*

**Math Middle School**

Please help me solve this challenge problem: I love hot chocolate and coffee. I began by making one cup of hot chocolate. I drink half of my cup and then I fill the cup with coffee. I stir the new mixture and drink half of the cup and then fill the cup again with coffee. I ...
*October 11, 2011 by HELP PLEASE!!!!!*

**arithmetic**

The pet shop owner told jean to fill the new fish tank 3/4 full of water.Jean filled the tank 9/12 full.What fraction of the tank does she still need to fill?
*March 21, 2012 by kelly*

**math **

the pet shop owner told Jean to fill her new fish tank 3/4 full with water. Jean filled it 9/12 full. What fraction of the tank does Jean still need to fill??
*November 10, 2012 by Marie*

**math**

the pet shop owner told Jean to fill her new fish tank 3/4 full with water. Jean filled it 9/12 full . what fraction of the tank does Jean still need to fill?
*March 4, 2013 by jessica*

**math**

The pet shop owner told Jean to fill her new fish tank 3/4 full with water. Jean filled it 9/12 full. What fraction of the tank does Jean still need to fill?
*February 10, 2014 by Anne*

**Maths**

13. The pet shop owner told Jean to fill her new fish tank 3/4 full with water. Jean filled it 9/12 full. What fraction of the tank does Jean still need to fill?
*May 4, 2014 by Anonymous*

**math**

the pet shop owner told jean to fill her new fish tank 3/4 full with water. jean filled it 9/12 full. what fraction of the tank does jean still need to fill.
*October 22, 2014 by Anonymous*

**Math**

The pet shop owner told Jean to fill her new fish tank 3/4 full with water. Jean filled it 9/12 full. What fraction of the tank does Jean still need to fill?
*March 16, 2015 by Jamason*

**Math**

the pet shop owner told jean to fill her new tank 3/4 full with water. Jean filled it 9/12 full. what fraction of the tank does Jean still need to fill?
*February 23, 2013 by Lissette*

**chemistry**

1. it takes: ____ electrons to fill the 6d subshell of an atom. 2. It takes _____ electrons to fill the n=6 shell of an atom. I thought it was 22 and 72?
*March 12, 2014 by abby*

**Math**

Faucet A fills a sink in 2 hrs. Faucet A and B fill the same sink (together) in 1 hr 15 mins. Faucet B would take how long to fill the sink by itself?" (Faucet B is slower)
*October 23, 2014 by Isiah*

**chemistry**

how do i balance the following(fill in the blanks): 1.) __BF3 + __Li2SO3 --> __B2(SO3)3 + __LiF 2.) __CaCO3 + __H3PO4 --> __Ca3(PO4)2 + __H2CO3 3.) __B2Br6 + __HNO3 --> __B(NO3)3 + __HBr
*December 15, 2008 by lyne*

**Physics**

Calculate the following, expressing the answer in scientific notation with the correct number of significant figures: (8.86 + 1.0 * 10^-3) / 3.610 * 10^-3 please help me write out the equation and fill in the appropriate data thanks for your help Jiskha
*February 8, 2009 by y912f*

**Physics**

a BALL IS THROWN UPWARD WITH AN INITIAL VELOCITY OF 9.8 M/S FROM THE TOP OF A BUILDING. FILL A TABLE BELOW SHOWING THE BALLS POSITION,VELOCITY, and ACCELERATION AT THE END OF EACH OF THE 1ST 4SEC OF MOTION TIME(s) POSITION(M) VELOCITY(M/S) 1 2 3 4 Acceleration (M?S^2) Fill in ...
*February 11, 2015 by Tim*

**Algebra 2**

An extruder can fill an empty bin in 2 hours and a packaging crew can empty a full bin in 5 hours. If a bin is half full when an extruder begins to fill it and a crew begins to empty it how long will it take to fill the bin?
*November 3, 2011 by GY*

**math**

1.) The first person who requires your assistance is Tina the bearded lady. Tina’s side job is to look after the elephants (she double majored at circus university.) a. Tina must fill the semi-circular trough shown above with peanuts. Tina knows that the store bought peanuts ...
*February 11, 2012 by harry*

**math**

ms.smith has a new fish aquarium that measures 45.3 cm long, 23.4 cm wide and 28 cm high. She has had a problem with the fish jumping out of the tank. today she is cleaning and decides to fill the tank to a level that is 4cm from the top to see if that will help. how mmany ...
*October 22, 2007 by kelsy*

**Math**

Jim can fill a pool carrying bucks of water in 30 minutes. Sue can do the same job in 45 minutes. Tony can do the same job in 1 ½ hours. How quickly can all three fill the pool together?
*September 23, 2007 by Jen*

**math**

Jim can fill a pool carrying buckets of water in 30 minutes. Sue can do the same job in 45 minutes. Tony can do the same job in 1 ½ hours. How quickly can all three fill the pool together?
*November 29, 2009 by Britany*

**math**

Jim can fill a pool carrying buckets of water in 30 minutes. Sue can do the same job in 45 minutes. Tony can do the same job in 1 and a half hours. How quickly can all three fill the pool together?
*March 4, 2009 by Nicole*

**Math**

Jim can fill a pool carrying buckets of water in 30 minutes. Sue can do the same job in 45 minutes. Tony can do the same job in 1 ½ hours. How quickly can all three fill the pool together? ANYBODY KNOW THE ANSWER??
*December 9, 2009 by matixbdm*

**Math**

A circular swimming pool is 4 feet deep and has a diameter of 15 feet. If it takes 7.5 gallons of water to fill one cubic foot, to the nearest whole number, how many gallons are needed to fill this swimming pool.
*March 14, 2011 by Anonymous*

**Chenistry**

Punnett Square for F1 Cross ¨C Expected Genetic Outcomes F1 Parent, genes: _________ (student to fill in the blanks) ¡â alleles > ¡á alleles v F1 Parent, genes:__________ (student fill in blank)
*July 8, 2012 by Cato*

**chemistry**

The following is kinetic rate data taken as absorbance of reactant vs. time: A: ln(A): Time/min: 0.532 ?? 0.0 0.484 2.54 0.442 5.12 0.395 8.35 0.350 11.95 fill in the ln(A) column
*September 24, 2012 by Brunette *

**Math (Number Theory)**

the following two lines indicate another way to derive the formula for the sum of the first n integers by rearranging the terms in the sum. Fill in the details. 1+2+3+...+n=(1+n)+(2+(n-1))+(3+(n-2))+... =(1+n)+(1+n)+(1+n)+...
*April 21, 2014 by Tiff*

**Math**

A tank is filled with an intake pipe that will fill it in 5 hours and an outlet pipe that will empty it in 15 hours. If both pipes are left open, how long will it take to fill the empty tank?
*July 20, 2014 by AD12*

**Math**

Each of three pumps A, B, C can pump water either into, or out of, a swimming pool. Pump A can fill the pool in 6 hours, while pumpp B works twice as fast. Pump C however takes one third more time than pump A to fill the pool. 1. All three pumps together pumping in water will ...
*March 19, 2015 by Yin*

**Algebra**

It takes 10 hours to fill a pool with water, and 20 hours to drain it. If the pool is empty and the drain is open, how long will it take to fill the pool?
*April 17, 2013 by Rayyan*

**Chemistry**

I dont get how to fill in the blanks Show the products for cellular respiration by completing the following chemical reaction equation. Give the correct formula for oxygen as well Glucose+_________ ---> ________+______+___________
*May 16, 2007 by Steve*

**math**

Using the following six digits, 1, 2, 4, 6, 8, and 9, fill in the blanks below to make the maximum product that you can. Use each digit only once. How does an understanding of place value help determine the best solution to this problem? __ __ __ x __ __ __
*September 22, 2010 by james*

**Algebra**

Using the following six digits, 1, 2, 4, 6, 8, and 9, fill in the blanks below to make the maximum product that you can. Use each digit only once. How does an understanding of place value help determine the best solution to this problem?
*January 17, 2011 by Melissa*

**Stats**

[1.5%] ANOVA: Three groups of 5 students were tested in their ability to correctly answer a 10-question quiz under different formats. Group 1 had a True/False quiz, Group 2 had a Fill-In quiz, and Group 3 had a Multiple Choice quiz. Their scores were as follows: True/False ...
*May 17, 2010 by TJohnson*

**math**

A fish tank 1 feet x 1 1/2 feet x 1/2 feet is carefully used to fill a large tank which has a capacity of 15 cubic feet. How many times will the contents of the smaller tank be rquired to be emptied into the larger tank to completely fill the tank? a. 8 b. 10 c. 11 d. 20 e. ...
*April 13, 2014 by thomas*

**english**

what is being said in the following line: “Foul devil, for God’s sake, hence, and trouble us not; For thou hast made the happy earth thy hell, Fill’s it with cursing cries and deep exclaims.”
*January 15, 2010 by kim*

**Math**

If a spherical tanl 4m in diameter can be fillef with a liquid for $900, find the cost to fill a tank 12m in diameter. The cost to fill the 12m tank is $__.
*January 22, 2015 by Pam*

**Pre-Calculus**

Two hoses together fill a pool in 2 h. If only hose A is used, the pool fills in 3 h. How long would it take to fill the pool if only hose B were used? I multiplied 3 and 2 and got 6 hours. Is this a valid method? Thanks
*April 25, 2015 by Lucina*

**Math 8R - Homework Help!: Part 1 **

Part 1: Fill in the definitions I need the definitions for the following words: solution evaluate inverse operations
*October 29, 2012 by Laruen*

**math**

the fill pipe for a tank can fill the tank in 4 hours and the drain pipe can drain in 2 hours. If both pipes are accidentally opened, how long will it take to empty a half-filled tank?
*September 24, 2008 by Anonymous*

**parent**

Complete the following chart with examples of each type of sculpture. Fill in the title of the artwork, the artist, the year made, and the medium. In the last column, determine whether the work is additive, subtractive, or neither. I need an example of how to post
*March 13, 2010 by Anonymous*

**chemistry**

fill in the missing symnbols in the following nuclear bombardment reactions a. 96 4 100 42Mo + 2He = 43 Tc+ ? b. 59 1 56 27Co+ 0n = 25+ ? c. 23 23 1 11Na+ ? = 12Mg+ 0n d. 209 210 1 83Bi+ ? = 84Po+ 0n e. 238 16 1 92U + 8O= ? + 5 0n TEACHER DID NOT EXPLAIN THIS AT ALL SO CONFUSED
*December 15, 2010 by coleman*

**Algebra**

represent the relationship between the number of triangles and the perimeter of the figures they form. fill in table below. triangle 1: 6-6-5(b) triangle 2:6-6-5(b)&(H) triangle 3: 6-6-5 (b)-5 (B) 5 (h) fill in number of triangles-1, 2, 3, and perimeter they have? Help
*March 4, 2013 by Brieson*

**MATHS**

Pipe A can fill a swimming pool in 10 hours.Pipe B can fill the same pool in 8 hours. If pipe A and pibe B work together for the first 2 hours and then pipe B stops working, how long will it take pipe A to finish the job?
*January 26, 2015 by LISA*

**Math**

A circular swimming pool is 4 feet deep and has a diameter of 15 feet. If it takes 7.5 gallons of water to fill one cubic foot, to the nearest whole number, how many gallons are needed to fill this swimming pool. Diameter = 2r A = π r^2 V = 4A W = 7.5V
*March 15, 2011 by Anonymous*

**Math**

A swimming pool size is 42 m long and 55 m wide with an average depth of 7.5 m. Using the density of water as 1 g/ml: A. how many gallons of water fill the pool B. The weight of water in lbs after the pool is full C. How long will it take to fill the ppol if a pump fills the ...
*September 27, 2013 by wendy*

**Math - Reposted - Mahi's question**

Fill the seven quart. Empty into the five quart, leaving two. Mark the 7 quart jar at that 2 quart level. dump the five quart contents. Pour the 2 quarts into the five, marking its level. Fill the seven quart to the 2 quart level where marked. Fill the five quart to the two ...
*February 9, 2007 by bobpursley*

**college algebra**

water from a tank is being used for irrigation while the tank is being filled. The two pipes can fill the tank in 6h and 8h, respectively. the outlet pipe can empty the tank in 24h. How long would it take to fill the tank with all three pipes open? round the answer to the ...
*December 12, 2012 by Zachery*

**Math**

complete the equation for the linear function whose graph contains the points (2,5) and (3,0) y - ____ = _____(x -2) *fill in the blank - not sure how to do this question cleaning company charges a fee of $65 in addition to $10.50 per hour of cleaning.. x = the number of hours...
*December 13, 2014 by Anonymous*

**Chemistry**

Fill in the missing information in the following table of four neutral atoms Symbol- 37Cl number of protons- 36 46 number of neutrons- 42 number of electrons- 33 mass number- 77 106
*January 25, 2012 by Tiffany*

**English**

Revise the following sentences to remove all pronoun errors. 41. When a police officer fires his gun, he must fill out a lot of paperwork. 42. When a teacher writes an exam, they think about what aspects of student learning they want to test.
*July 28, 2011 by bill*

**chemistry**

Solid sodium azide (NaN3) is used in air bags to fill them quickly upon impact. The solid NaN3 undergoes a decomposition reaction to produce Na(s) and N2(g). a. Provide the balanced equation for the decomposition of NaN3. b. What mass, in grams, of NaN3 is needed to fill the ...
*November 6, 2013 by Anonymous*

**Math**

I was given the following magic square and was to fill in the blanks. I know that all the rows and center diagonals are to add up to 111 and no number is used more than once (1-36). I just can't figure it out. I can get all but 2 columns and one diagonal. Help! - 15 - 6 1 - 33...
*September 26, 2007 by Logan*

**math**

i have a 36 in. wide by 18 in. length by 20 in high rectangular aquarium that needs to be filled. i have a 12 in high cylindrical bucket with a 12 in diameter to fill the tank. if the aquarium contains 3 in of gravel and the bucket is to be filled to a depth of 11 in, how many...
*February 20, 2012 by mikey*

**English 10-Check/Help**

Part 1: Poem Structure Check my following answers below, and I need help with theme? Dx In this part, you will analyze the structure of the poem. Please fill out the following. Title of Poem: Annabel Lee Poet: Edgar Allan Poe Theme: Type of Poem: Narrative poetry Style of ...
*May 1, 2013 by Victoria*

**Spanish**

Completa las siguientes oraciones con una palabra de la misma familia de la palabra subrayada. Usa la forma correcta de cada palabra. 1.) Cuando te (enfermas), te sientes (fill in blank) y necesitas ir al consultorio para ver a la (fill in blank). I have the answer to the ...
*February 4, 2013 by Jamie Sanders*

**math**

Jim can fill a pool carrying buckets of water in 30 minutes. Sue can do the same job in 45 minutes. Tony can do the same job in 1 ½ hours. How quickly can all three fill the pool together? A. 12 minutes B. 15 minutes C. 21 minutes D. 23 minutes E. 28 minutes
*March 19, 2009 by sharon*

**algebra**

given two containers, one holding 4 gal. and the other holding 3 gal. how does one measure out two gal.? Fill the 3 gal, pour it in the 4 gal. Fill the 3 gal, then pout it int the 4 gal until filled. How much is left in the 3 gal? thank you bobpursley!!!!!!!!!!!
*April 26, 2007 by Ethan*

**math**

Jim can fill a pool carrying buckets of water in 30 minutes. Sue can do the same job in 45 minutes. Tony can do the same job in 1.5 hours. How quickly can all three fill the pool together? A.12 minutes B.15 minutes C.21 minutes D.23 minutes E.28 minutes I got 53 minutes, but ...
*July 28, 2014 by Johnny *

**math help**

A tank has two pipes entering it.when operating together,they fill the tank in 40 minutes.operating independently,one of the pipes fills the tank 60 minutes faster than the other one does. calculate the time taken by each pipe to fill the tank on its own.
*April 7, 2015 by happy*

**math help**

A tank has two pipes entering it.when operating together,they fill the tank in 40 minutes.operating independently,one of the pipes fills the tank 60 minutes faster than the other one does. Calculate the time taken by each pipe to fill the tank on its own.
*April 18, 2015 by thabo*

**Algebra I**

Pump A, working alone, can fill a tank in 3 hours, and pump B can fill the same tank in 2 hrs. If the tank is empty to start and pump A is switched on for one hour, after which pump B is also switched on and the two work together, how many minutes will pump B have been working...
*June 30, 2010 by Meredith*

**calculus**

If x^{2} + y^3 - x y^2 = 5, find dy/dx in terms of x and y. Using your answer for dy/dx, fill in the following table of approximate y-values of points on the curve near x=1, y=2. Finally, find the y-value for x=0.96 by substituting x=0.96 in the original equation and solving ...
*February 23, 2011 by Anonymous*

**statistics**

Speeds for a randomly selected sample of n = 36 vehicles will be recorded. Determine the values that fill in the blanks in the following sentence. For samples of n = 36 vehicles, there is about a 95% chance that the mean vehicle speed will be between ___ and ___.
*October 3, 2012 by margie wilcox*

**math**

A carpenter who is installing cabinets uses thin pieces of material called shims to fill gaps. The carpenter uses four shims to fill a gap that is 1.2 centimeters wide. Three of the shims are 0.75 centimeter, 0.125 centimeter, and 0.09 centimeter wide. What is the width of the...
*November 6, 2014 by Makenzey*

**Algebra**

A carpenter who is installing cabinets uses thin pieces of material called shims to fill gaps. The carpenter uses 4 shims to fill a gap that is 1.2 centimeters wide. Three of the shims are 0.75 centimeter, 0.125 centimeter, and 0.09 centimeter wide. What is the width of the ...
*October 9, 2014 by Ms. Liz*

**SraJMcGin spanish HELP**

a few more spanish questions ahora escribe frases donde expresas una condicion con si 1. Si manana cancelamos la escuela my answer viajre a Estados Unidas. 2. Si el ano proximo me dan un carro nuevo my answer viajare a Santa Maria. 3. Si tengo que mudarme en dos anos my answer...
*April 24, 2009 by sam*

**chm I**

Lithium hydride reacts with water as follows. LiH(s) + H2O(l) -->LiOH(aq) + H2(g) During World War II, U.S. pilots carried LiH tablets. In the event of a crash landing at sea, the LiH would react with the seawater and fill their life belts and lifeboats with hydrogen gas. ...
*June 29, 2011 by lynn*

**College physics**

What is the effect of inserting a ferromagnet inside a winding coil where current flows? The effect is to Fill in the Blank 01 (increase/decrease) the magnetic field inside the coil compared to the field that would have been produced in free space. This also Fill in the Blank ...
*July 28, 2010 by katie*

**Math**

I need help on factoring monomials in quadratic form. The problem is: a² + 17a + 16 I know that the first step is to multiply 16 times the coefficient of "a", which is 1. I get 16. Now I have to fill in factors that when multiplied, equal 16, but when added, equal 17. So now I...
*January 15, 2008 by Kristiane*

**FLUID MECHANICS**

Water at temperature of 15°C flows through a pipe of diameter D = 2 cm and into a glass. Determine i. The minimum time taken to fill in a 0.5 L glass full with water if the flow in the pipe is to be laminar. ii. The maximum time taken to fill the glass if the flow is to be ...
*May 3, 2014 by ANNA*

**Spanish: check answers**

Questions: 3. Paella is a dish like tacos. a dish made of rice, seafood, and vegetables eaten in Spain. another name for enchiladas. 4. Fast-food restaurants in the Spanish-speaking world are generally very popular with adults. look similar to the ones in the United States and...
*March 21, 2013 by Jade*

**Chemistry help please**

A student collected the following data for a fixed volume of gas: ￼ Temperature(C) pressure(mm of hg) 10 726 20 750 40 800 70 880 100 960 150 ??? Fill in the missing data point. Show all calculations leading to an answer.
*March 12, 2015 by Ciaria *

**math**

A tank fitted with two pipes is to filled with water. One pipe can fill it in 5 hours. After it has been open for 3 hours, the second pipe is opened and the tank is filled in 4 hours more. How long it would take the second pipe alone to fill the tank?
*September 14, 2011 by jannaline inguito*

**math **

It takes 96 tiles to fill a 2-foot by 3-foot rectangle. How many tiles would it take to fill a 4-foot by 6-foot rectangle?
*January 4, 2011 by heather*

**Calculus**

Consider the function f(x)=8.5x−cos(x)+2 on the interval 0¡Üx¡Ü1 . The Intermediate Value Theorem guarantees that there is a value c such that f(c)=k for which values of c and k? Fill in the following mathematical statements, giving an interval with non-zero length in ...
*February 5, 2011 by Abigail*

**Algebra 1**

You drive a car that runs on ethanol and gas. You have a 20-gallon tank to fill and you can buy fuel that it is either 25 percent ethanol or 85 percent ethanol. How much of each type of fuel should you buy to fill your tank so that it is 50 percent ethanol?
*April 21, 2011 by Stephanie*

**chem**

Lithium hydride reacts with water as follows. LiH(s) + H2O(l) -->LiOH(aq) + H2(g) During World War II, U.S. pilots carried LiH tablets. In the event of a crash landing at sea, the LiH would react with the seawater and fill their life belts and lifeboats with hydrogen gas. ...
*October 16, 2010 by amber*

**math**

Fill in the blanks y = 10x + 100 x y -20 ? -10 ? 0 ? 10 ? I don't see any blanks to fill in. Are they telling you values of y and asking you co compute x? Or vice versa? The spacing changed the format I had. the values for x are -20, -10, 0, 10 now I need to find the values ...
*July 7, 2007 by Bianca*

**Algebra**

pam scored 78 on a test that had 4 fill-in questions worth 7 points each and 24 muliple choice questions worth 3 points each. She had one fill-in question wrong. How many multiple-choice questions did pam get right?
*October 28, 2011 by Sharday*