Friday

December 9, 2016
Number of results: 11,210

**pre-algebra**

Wel-min makes a square quilt that has an area of 100 square feet.It has 25 square blocks, each the same size. What is the legth of each side of a block? A-2 feet B-4 feet C-6 feet D-10 feet

*October 30, 2014 by alyssa*

**maths**

height=6 feet length=5 feet breadth=4 feet volume of the container=120 cubic feet how do you convert it into litres?

*March 23, 2011 by help*

**Math**

How much water could a swimming pool hold that is 25 feet Long, and 8 feet wide, and 6 feet deep? Your answer will be in cubic feet.

*September 30, 2015 by Amy*

**calculus**

the height in feet of a rocket from ground level is given by the function f(t)= -16t^2+160t. what is the instantaneous velocity of the rocket 3 seconds after it is launched? A 32 feet/sec B 64 feet/sec C 12 feet/sec D 10 feet/sec E 8 feet/sec

*November 26, 2012 by Disha*

**math 156**

if a sewer line drops 1 foot every 40 feet how many feet will drop over a distance of 100 feet? is it 400 feet?

*December 3, 2009 by Rmz*

**Problems with measurements**

1 liter of paint covers 10 square feet of wall. How many liters of paint is needed to cover a wall that's 15ft by 8ft?

*January 7, 2015 by Mashayla*

**Math**

Assume you are working on a house the length of the house is 50 feet, the width is 30 feet, and from the ground to the gable is 10 feet. The height of the triangle prism on top is 6.5 feet. If you are going to shingle the roof of this house, how many square feet should you ...

*February 28, 2014 by Logan*

**math**

Paint was stored in three containers of 48 liters, 72 liters and 30 liters . The paint in each container was the repacked into smaller containers. The amount of paint in each of s smaller containers was the same. What was the capacity of the largest container used to repack ...

*January 6, 2015 by kgk*

**Physical Education**

At what distance is a baseball pitched from the mound to the batter? 40 feet 50 feet 60 feet 6 inches =*** 66 feet

*November 6, 2015 by Kaai97*

**Math geometry **

What is a Volume in a cubic feet of a box that is 3 feet long 8 feet wide and 16 feet high

*September 14, 2016 by Lashell*

**Math**

A tank initially contains 50 liters of water. A hose adds water to the tank at a rate of 2 liters per minute. Write a linear equation for the amount of water in the tank, W, liters in terms of t, minutes. Then use your equation to find how much water is in the tank after 20 ...

*November 15, 2012 by Brigette*

**Math**

Which container holds more, a half-gallon milk jug or a 2 liter juice bottle? My answer: 1 gallon=3.79 liters 3.79 liters/2=1.895 liters A 2 liter juice bottle would hold more. Can you please check my work and let me know if there is another way to figure this answer out. ...

*October 17, 2016 by Erik*

**physics**

To verify her suspicion that a rock specimen is hollow, a geologist weighs the specimen in air and in water.She finds that the specimen weighs twice as much in air as it does in water.The solid part of the specimen has a density of 5.0 multiplied by 10(cubed)kg/m(cubed).What ...

*December 6, 2011 by chrystabelle1*

**Math**

1. To find the height of a pole, a surveyor moves 120 feet away from the base of the pole and then, with a transit 8 feet tall, measure the angle of elevation to the top of the pole to be 36*. to the nearest foot, what is the height of the pole? A) 87 feet. B) 95 feet. C) 71 ...

*April 19, 2016 by Tim*

**chemistry**

A piston has an external pressure of 9.00 atm. How much work has been done if the cylinder goes from a volume of 0.130 liters to 0.500 liters? can someone explain to me how am i supposed to do this please? Thanks :D

*November 25, 2011 by Yuli*

**Math**

Mark needs to cut a piece of glass to replace a broken window. He has four pieces of glass: 6 feet long, 5 feet long, 3 feet long, and 7 feet long. If the length of the glass he needs to cut is feet long, which piece of glass should he cut to have the least amount of unused ...

*October 28, 2015 by MsHemmoPenguin*

**Math**

the car on the hydraulic lift in figure 22-2 has a weight of 16,170 N. Piston B has a surface area of 5,005 centimeters cubed; Piston A has an area of 65 centimeters cubed. What force must be applied to Piston A to lift the call? I tried to do 16,170 by 5,005 but I don't think...

*April 1, 2015 by Aubry*

**chemistry**

In the following reaction, how many liters of oxygen produce 560 liters of carbon dioxide in the oxidation of methane, given that both gases are at STP? CH4 + 2O2 d CO2 + 2H2O

*May 24, 2012 by Anonymous*

**chemistry**

In the following reaction, how many liters of oxygen produce 560 liters of carbon dioxide in the oxidation of methane, given that both gases are at STP? CH4 + 2O2 ¨ CO2 + 2H2O

*March 18, 2014 by alex*

**Precalculus**

a farmer has available 1032 feet of fencing and wishes to enclose a rectangular area. If x represents the width of the rectangle for what value of x is the area the largest A) 256.5 feet b) 258 feet c) 256 feet d) 257 feet

*March 29, 2010 by Arielt*

**math**

Moulding comes in four different lengths. Jesse needs to cut four pieces of moulding, each 3 and 7 tenths feet long, from one board. Which length should he buy? 8 feet, 10 feet, 12 feet, or 14 feet?

*September 18, 2011 by alissa*

**MATH**

A CAR TRAVELS 432 KM ON 48 LITERS OF PETROL . HOW FAR WOULD IT TRAVEL ON 28 LITERS OF PETROL ONLINE SOULATION

*July 6, 2011 by ANKIT*

**Math**

How many liters of coke are there in 100 cans if each can contain .385 liters of coke? Round your answer to the nearest liter.

*March 18, 2013 by Nomad*

**Math**

A gallon of gasoline is more than ___ liters but a little less than ___ liters. I think the answers are 4 and 5. Am I correct?

*February 10, 2015 by Mel*

**Physics**

A quantity of monatomic ideal gas expands adiabatically from a volume of 2.0 liters to 6.0 liters. If the initial pressure is P0, what is the final pressure?

*February 12, 2013 by Alex*

**math**

a lab assistant wants to make 5 liters of 27.8% acid solutions. if solutions of 50% and 13% are in stock, how many liters of each must be mixed to prepare the solution?

*March 28, 2013 by Anonymous*

**algebra**

A lab assistant wants to make 5 liters of 27.2% acid solution. If solutions of 30% and 16% are in stock, how many liters of each must be mixed to prepare the solution?

*July 5, 2014 by annie*

**Algebra**

You are working as a caterer and needs 20 gallons of lemonade for an upcoming event the bottles of lemonade you are purchasing are in liters How many liters will you need

*November 13, 2016 by Anonymous*

**Stoichiometry**

[Volume-Volume].How many liters of HF gas will be produced when 30.0 liters of hydrogen reacts ? Equation:h2+f2--->2HF i need help

*March 30, 2009 by Dom*

**Chem**

A cylinder in your car holds 0.45 liters maximum at 760 Torr. When the cylinder is closed to 0.1 liters what is the pressure?

*October 18, 2012 by Anonymous*

**Urgent ..!Math**

If a car covers 82.5km in 5.5 liters of petrol, how much distance will it cover in 13.2 liters of petrol?

*June 26, 2016 by Vecchi*

**science**

A person owns a 146.8 acre farm which received a total of 1.64 inches of rain. How many liters of rain would that be? An acre is 43560 square feet; there are 2.54 cm in one 1 inch.

*September 10, 2007 by mustafa*

**math**

Josh has 5/8 of a foot of plywood. To finish building the deck, he needs five time that amount. How many feet of plywood does Josh need? A.) 3 feet B.) 3 1/2 feet C.) 3 1/8 feet D.) 3 2/9 feet

*December 10, 2014 by annette*

**math**

A bottler company dilutes and mixes concentrated juice with carbonated water then fills the blended beverage into two-liter bottles Brand 1 - 81,000 two-liters Brand 2 - 62,000 two-liters Assume that the concentrate costs $66 per pound for both Brand 1 and Brand 2 and is used ...

*November 2, 2015 by larry*

**math help please**

Dolphin 1 dove 200 feet under water. Dolphin 2 dove 30% farther. After Dolphin 2 dove down, it ascended 25 1/2 feet and then descended 40 1/2 feet. How far under the water is Dolphin 2? A 295 feet B 275 feet C 245 feet D 215 feet

*January 18, 2016 by chase*

**Chemistry**

In the following reaction, how many liters of oxygen will react with 124.5 liters of propane (C3H8), at STP? C3H8 + 5O2 = 3CO2 + 4H2O

*September 14, 2011 by Anonymous*

**General Chemistry **

A piston has an external pressure of 7.00 atm. How much work has been done in joules if the cylinder goes from a volume of 0.130 liters to 0.650 liters. Express your answer with the appropriate units.

*March 20, 2014 by Jamie*

**Calc**

A closed box with a square base is to be constructed so that its volume is 324 cubed feet. The material for the top and bottom cost is $3 per square foot, and that for the sides $2 per square foot. Find the dimensions of the box so that the cost will be minimum.

*June 5, 2012 by Caitlin*

**MATH**

A CAR TRAVELS 432 KM ON 48 LITERS OF PETROL . HOW FAR WOULD IT TRAVEL ON 28 LITERS OF PETROL

*July 6, 2011 by ANKIT*

**Aig math (ms.sue)**

A bucket can hold 6 liters of water.If it is 3/4 full,how many liters of water does it contain?

*March 13, 2012 by lidia*

**Chemistry**

A sample of gas has a volume of 8.1 liters at 1 atmosphere pressure and 203.0 K. What is its volume (liters) at STP?

*March 25, 2013 by Linzy*

**Chemistry**

Given the reaction 2C2H6 + 7O2 → 4CO2 + 6H2O ∆H = -1416 kJ/mol C2H6 a. How many liters of Carbon Dioxide would be produced if 16.00 L of ethane, (C2H6), were burnt (all at STP)? b. How many liters of water vapor would also be produced? c. How many liters of Oxygen ...

*December 16, 2012 by Shenette*

**Geometry**

A swimming pool is a rectangular prism. Estimate the volume of water in the pool in gallons when it is completely full (Hint: 1 gallon = 0.134 ft^3 ((feet cubed)) ). The density of water is about 8.33 pounds per gallon. Estimate the weight of the water in pounds.

*March 6, 2016 by Bree*

**math**

Trahen is building a fence that is 6 feet high and 18 feet wide to put around his garden. He has two sizes of boards that he can use. One is 2 feet by 6 feet and the other is 4 feet by 6 feet. Trahen can put the boards either horizontally or vertically and he has lots of ...

*July 10, 2013 by GT*

**7th grade math help square roots**

4. Wei-Min makes a square quilt that has an area of 100 square feet. It has 25 square blocks, each the same size. What is the length of each side of a block? 2 feet 4 feet 6 feet 10 feet What is the value of "x" if 25^2 = x? 125 0 625 5

*October 3, 2012 by Delilah*

**chemistry**

Find the volume in liters. 6.5kg of a substance with a density of 7.96g/mL Im confused about how it would come out in liters.. if the mass is in kg and the density is in g/mL

*March 5, 2011 by tammie*

**SAT Math**

A container in the shape of a right circular cylinder contains 12 liters of liquid when it is filled to 3/4 of its height. How many liters does it contain when it is completely filled?

*July 10, 2011 by Yuri*

**mathematics**

how many liters of water will have to be added to 1125 liters of 45% solution of acid so that the resulting mixture will contain more than 25% but less than 30% acid content.

*September 20, 2012 by edward*

**algebra**

a chemist needs 10 liters of a 25% acid solution. the solution is to be mixed from three solutions whose acid concentrations are 10% 20% 50% how may liters of each solution should the chmist use to satisfy the following? a use as little as possible of the 50% solution b use as...

*April 26, 2008 by sandy*

**radical expressions**

3 cubed square root of negative 432 What gets cubed? The 3 or "the square root of negative 432" ? If you mean 3^3 * sqrt (-432), the answer is 561.18 i, where i = sqrt (-1).

*February 27, 2007 by Anonymous*

**chemistry**

Using the balanced equation, 2 C2H2(g)+5 O2(g) yields 4 CO2(g)+2 H2O(g), at STP if 1mol of C2H2 burned in unlimited oxygen and the theoretical yield of carbon dioxide in liters at STP is 44.8 liters of carbon dioxide, and if 28.5 liters of carbon dioxide is produce to give you...

*December 16, 2014 by Lexia*

**chemistry urgent**

what volume in liters of gaseous hydrogen chloride can be prepared from 40.0 liters of hydrogen with an exces of chlorine? all volumes are measured at STP: H + Cl -> HCl

*November 30, 2010 by lianne*

**Chemistry**

If 3.0 liters of oxygen gas react with excess carbon monoxide at STP, how many liters of carbon dioxide can be produced under the same conditions? 2 CO (g) + O2 (g) ---> 2 CO2 (g)

*February 4, 2015 by Jess*

**math**

how many liters of water must be added to 30 liters of a 20% alcohol solution to dilute it to a 15% solution?

*April 6, 2010 by Dawn*

**math**

how many liters of water must be added to 30 liters of a 20% alcohol solution to dilute it to a 15% solution?

*April 6, 2010 by Dawn*

**math**

how many liters of water must be added to 30 liters of a 20% alcohol solution to dilute it to a 15% solution?

*April 6, 2010 by Anonymous*

**Math**

How many liters of water should be added to 20 liters of 40% solution of acid to obtain 30% solution?

*June 27, 2011 by Daniel*

**AP Chem**

How many liters of H2 have the same number of molecules as 1.00 liters of 02? ( At the same temperature and pressure)

*October 16, 2013 by Josh*

**factoring cubes**

how to factor x^3-27 well since 27 is a perfect cube and so is x^3 wouldn't the answer be x-3? no, its something like (2x-3)(?x^2+?X+?) i don't know how to figure all the parts out. Here's the format for the difference between two cubes: (a - b)(a^2 + ba + b^2) = a^3 - b^3. ...

*January 18, 2007 by Linds*

**chemistry**

ohh im sorry i also have another problem i don't understand. "A rectangular solid measures 1.0 m by 5.6 cm by 2.1 dm. Express its volume in cubic meters, liters, cubic inches, and cubic feet." i don't even know what dm means ! Someoneee please help me!

*July 21, 2008 by Jecce*

**Precalculus**

a farmer has available 1032 feet of fencing and wishes to enclose a rectangular area. If x represents the width of the rectangle for what value of x is the area the largest A) 256.5 feet b) 258 feet c) 256 feet d) 257 feet please show work! i need help fast

*March 29, 2010 by Help now fast due tommorow*

**Precalculus**

a farmer has available 1032 feet of fencing and wishes to enclose a rectangular area. If x represents the width of the rectangle for what value of x is the area the largest A) 256.5 feet b) 258 feet c) 256 feet d) 257 feet please show work! i need help fast

*March 29, 2010 by Help now fast due tommorow!!!!!!!!!!!!!!!!!!!!!!!!*

**AP Chemistry**

What is the value of w (work) when 1.3 moles of H2 expands from 25 liters to 50 liters against a constant external pressure of 1 atm, then expands further from 50 to 100 liters against a constant external pressure of 0.1 atm? Answer in calories. Answer in units of cal I know ...

*January 6, 2015 by Ethan*

**Algebra**

Wanda has a fishtank that is 2 feet long, 3 feet wide, 4 feet high. If she pours 20 cubic feet (feet3=ft3) what it the height of the water level in the tank? Round answers to the nearest hundredth

*February 2, 2016 by John Allen*

**12th grade**

gaseous ammonia is made by the following reaction: N2+3H2 - 2NH3. if you start with 7 liters on nitrogen gas, how many liters of hydrogen are needed for a chemical reaction?

*June 14, 2010 by Anonymous*

**Chemistry**

1.50 liters tank filled with helium at 125 atm is used to fill balloons. The pressure in each balloon is 950 torr and the volume of each is 1.20 liters. How many ballons can be filled?

*September 8, 2010 by Alex Yoo*

**AP Chemistry **

How much work is done by the system when 2.00 moles of O2 expand from a volume of 3.00 liters to a volume of 8.5 liters against a constant external pressure of 0.0100 atm? Answer in units of J.

*December 4, 2011 by Ashlyn*

**ap chemistry**

How much work is done by the system when 2.00 moles of O2 expand from a volume of 3.00 liters to a volume of 8.1 liters against a constant external pressure of 0.0100 atm? Answer in units of J

*October 31, 2012 by cheri*

**math**

How many square feet of carpet will be needed to cover the kitchen and bedroom floors? 237.5 square feet 365 square feet 425 square feet 475 square feet

*October 18, 2016 by jake*

**HELP!!!!**

Darnell used one small can of polyurethane to seal a square patch of his hardwood floor. The can advertised coverage of 50 square feet. What is the approximate side length of the square Darnell sealed? a)7 feet b)8 feet c)25 feet d)49 feet

*April 8, 2011 by Dezzy*

**Physics Help!!!**

The water in your bathtub is getting cold. You currently have 36 liters at 31°C. What is the new temperature after you add 10 liters of 70°C hot water? Degrees Celsius are entered as degC.

*November 8, 2010 by Ryan*

**ap chemistry ! i am so lost**

how much work is done by the system when 2.00 moles of O2 expand from a volume of 3.00 liters to a volume of 5.8 liters against a constant external pressure of 0.0100 atm? answer in units of J

*October 18, 2012 by bridget*

**ap chemistry ! i am so lost**

how much work is done by the system when 2.00 moles of O2 expand from a volume of 3.00 liters to a volume of 5.8 liters against a constant external pressure of 0.0100 atm? answer in units of J

*October 18, 2012 by bridget*

**AP Chemistry**

How much work is done by the system when 2.00 moles of O2 expand from a volume of 3.00 liters to a volume of 9.6 liters against a constant external pressure of 0.0100 atm answer in units of joules

*October 11, 2013 by Gabriella*

**Math**

Salon an was told the written paper on his science experiment should express measurements in liters. Which shows how to calculate the number of liters he used if he used 5 cups of water

*September 24, 2015 by Megan*

**math**

find the area of the livingroom the room is 16 feet by 10 feet by 9 feet by 13 feet

*January 30, 2012 by Anonymous*

**Math**

From a boat on the lake, the angle of elevation to the top of a cliff is 26°35'. If the base of the cliff is 85 feet from the boat, how high is the cliff (to the nearest foot)? A. 56 feet B. 43 feet C. 53 feet D. 46 feet I HAVE BEEN WORKING ON THIS FOREVER! please help me :( ...

*October 23, 2012 by Ashley*

**Math**

John is building a fence that is 6 feet high and 18 feet wide to put around his garden. He has two sizes of boards that he can use. One is 2 feet by 6 feet and the other is 4 feet by 6 feet. John can put the boards either horizontally or vertically and he has lots of boards of...

*February 19, 2013 by John*

**math ,geometry**

John is building a fence that is 6 feet high and 18 feet wide to put around his garden. He has two sizes of boards that he can use. One is 2 feet by 6 feet and the other is 4 feet by 6 feet. John can put the boards either horizontally or vertically and he has lots of boards of...

*July 11, 2013 by GT*

**math help**

A lab assistant wants to make FIVE LITERS of 31.2% acid solution. If solutions of 40% and 18% are in stock, how many liters of each must be mixed to prepare the solution. i don't even know what equation to use or anything, please help me, thank you.

*March 29, 2012 by amy *

**Math**

I need help atleast an equation to get started please A lab assisstant wants to make five liters of 27.8% acid solution. If solutions of 50% and 13% are in stock, how many liters of each must be mixed to prepare the solution.

*May 12, 2012 by Janine*

**Mathematics**

Q1.A man earn $1200 and spends $450 per month.Find ratio of (a)His income to his expenditure and (b)His savings to his income Q2.An open water tank with length 20 cm and width 15 cm holds 4.8 liters of water.calculate the height of the water level tank and the total surface ...

*May 14, 2011 by Envy Green*

**Area and Perimeter Word Problems**

1 liter of paint covers 10 square feet of wall. How many liters of paint does Bob need to buy if he wants to cover a wall that is 15ft by 8ft? Must show the breakdown of the problem.

*January 7, 2015 by Mashayla*

**AP Chemistry**

What is the value of w (work) when 2.6 moles of H2 expands from 25 liters to 50 liters against a constant external pressure of 1 atm, then expands further from 50 to 100 liters against a constant external pressure of 0.1 atm? Answer in calories. Answer in units of cal.

*October 5, 2010 by Nick*

**ap chemistry**

What is the value of w (work) when 1.3 moles of H2 expands from 25 liters to 50 liters against a constant external pressure of 1 atm, then expands further from 50 to 100 liters against a constant external pressure of 0.1 atm? Answer in calories. Answer in units of cal

*October 31, 2012 by cheri*

**math**

) A water tank is emptying steadily by 2 liters of water per hour. There were 2 liters of water 6 hours after midnight. Let x represent the number of hours since midnight, and let y represent the number of liters of water in the tank. Find the equation showing the amount of ...

*February 6, 2015 by HAAAAAAAAY*

**math**

) A water tank is emptying steadily by 2 liters of water per hour. There were 2 liters of water 6 hours after midnight. Let x represent the number of hours since midnight, and let y represent the number of liters of water in the tank. Find the equation showing the amount of ...

*February 6, 2015 by HAAAAAAAAY*

**math**

A storage room measures 14.25 feet in length by 12.5 feet in width by 8.4 feet in height. It contains a box which is 2.5 feet in length, 5.2 feet in width and 1.5 feet in height . How many cubic feet of storage space are left in the room (rounded to the nearest cubic foot)?

*July 12, 2012 by lamedia*

**math**

a storage room measures 11.35 feet in length by 9.5 feet in width by 8.3 feet in height. it contains a box which is 4.25 feet in length 6.5 feet in width and 4.0 feet in height.how many cubic feet of storage space are left in the room rounded to the nearest cubic foot

*April 7, 2014 by erika*

**Algebra**

Owners of a recreation area are filling a small pond with water. They are adding water at a rate of 25 liters per minute. There are 700 liters in the pond to start. Let W represent the amount of water in the pond (in liters), and let T represent the number of minutes that ...

*May 12, 2011 by Rachal*

**math..word problem**

A landscaper dug holes. It takes him 1 hour to dig a hole 2 feet deep, 2 feet long and 2 feet wide. Assuming everything remains the same, how many hours would it take him to dig a hole 4 feet deep, 4 feet long and 4 feet wide?

*August 21, 2009 by M.A.*

**Math**

A landscaper is digging holes it takes him one hour to dig a hole 2 feet deep, 2 feet long and 2 feet wide. Assuming everything remains the same, how many hours would it take him to dig a hole 4 feet deep, 4 feet long and 4 feet wide?

*August 21, 2009 by Sarah*

**Pre Calculus**

If you are riding on a Ferris wheel that is 60 feet tall and it takes 5 minutes to make a one revolution, what is your linear velocity? A. 0.62 feet per second B. 0.31 feet per second C. 37.68 feet per second D. 3.14 feet per second E. 9.42 feet per second

*April 22, 2013 by Deontre*

**Math**

A flagpole is 20 feet tall and, in the afternoon, casts a shadow of 30 feet. At the same time, Keira casts a shadow of 7.5 feet. How tall is Keira? A. 3 feet. B. 4 feet. C. 5 feet. D. 5 feet

*February 20, 2011 by Awesome1*

**Chemistry**

Calculate the density of a substance in pennyweights per peck that has a volume of 0.371 hogsheads and a mass of 41.6 kg. 1 pennyweight = 1.55 grams 1 hogshead = 238.5 liters 1 peck = 9.091 liters. Answer in units of pw/pk.

*September 27, 2012 by Peter*

**chem **

A sample of sulfur hexafluoride gas (SF6) occupies a volume of 1.200 Liters at 7.067 x 101 oC. Assuming the pressure is constant, what will the final temperature be (in o C) if the volume is increased to 7.110 Liters?

*April 15, 2013 by will.i.am*

**Chemistry**

A sample of sulfur hexafluoride gas (SF6) occupies a volume of 3.230 Liters at 7.011 x 101 oC. Assuming the pressure is constant, what will the final temperature be (in o C) if the volume is increased to 7.350 Liters?

*April 27, 2016 by Ben*

**chemistry **

When 6 liter of nitrogen gas reacts with 18 liters of hydrogen gas at constant temperature and pressure, how many liters of ammonia gas will be produced?

*April 19, 2015 by braeden*

**math**

The shadow of a 5-foot tall post is 10 feet long. At the same time a tree casts a shadow that is 24 feet long. What is the height of the tree? A. 2 feet B.14 feet C. 12 feet D. There is not enough information to solve the problem

*May 8, 2014 by Anonymous*

**geometry**

how much water can be held by a cylindrical tank with a radius of 12 feet and a height of 30 feet? is it 33912 cubic feet? or perhaps 2260.8 cubic feet?

*June 15, 2011 by danna*