Monday

August 3, 2015

August 3, 2015

Number of results: 52,847

**math**

Bella spent 4/7 of her money on a dictionary and 3 identical books. She spent 1/6 of the remainder on a journal that cost $7. How much did she spend on the dictionary and 3 books? If 3/8 of the cost of the dictionary was the same as 1/2 of the total cost of 3 books, how much ...
*January 15, 2015 by R*

**Math**

What is the distance on the ground between 2 posts when the posts are attached to a platform that is 6 feet square and attached with 15 degree brackets? The posts are either 10 foot or 12 foot. Please answer for both.
*April 21, 2013 by Gina*

**business calculus**

C'(x)= 50 _______________ square root of x fixed cost= $25000 find the cost function C(x) integrate C'(x) wouldn't that be 100x^(1/2) + c ??? now where do you think the fixed cost comes in?
*May 3, 2007 by Amos*

**Algebra**

A rectangular box with the volume 320 cu ft is built with a square base and a square top. The cost is $1.50/sg ft for the bottom, $2.50/sq ft for the sides and $1.00/sq ft for the top. Let x=the lenth of the base in feet. Express the cost of the box as a function of x. Where ...
*January 26, 2007 by Heidi*

**math**

A square room has perimeter of 32 feet. How. Many many square floor tiles with sides 1 foot long are needed to cover floor
*November 30, 2010 by tim*

**Math**

Paul is painting a square wall with an area of 115 square feet. To the nearest foot, what is the length of the wall? Hint: A = s2. 11 29 42 58
*November 19, 2012 by Eric*

**meadowcreek**

a square fishpond has an area of 68 square feet, to the nearest thenth of a foot, what is the length of a side of the fishpond
*November 18, 2011 by mishell lopez*

**math**

I did the first part how would i graph it. Problem: Business and finance. The cost of producing a number of items x is given by C = mx + b , in which b is the fixed cost and m is the variable cost (the cost of producing one more item). (a)If the fixed cost is $40 and the ...
*December 22, 2006 by jasmine20*

**economics**

Output Fixed Cost Variable Cost 1 $5 $10 2 $5 $27 3 $5 $55 4 $5 $91 5 $5 $145 (a) What is the total cost when output is 2? (b) What is the marginal cost of the third unit? (c) How much should this firm produce if the market price is $24?
*October 29, 2007 by anonymous*

**Math (Variation)**

The cost of a pizza varies directly as the square of its radius. If a pizza with a 6-inch radius costs ₱148.00, how much should a pizza with an 11-inch radius cost?
*February 11, 2014 by Shin*

**Chemistry**

Search: How much energy (in Kj) is relased when 25.0g of ethanol vapor at 93, is cooled to -10? Ethanol has a melting point of -114.5, bp of 78.4, specific heat= 2.10J/g, heat of fusion =4.60Kj/mol, specicic heat= 1.9j/g, heat of vaporization = 38.56Kj/mol
*September 27, 2011 by Oscar*

**math**

You are thinking of making your mansion more energy efficient by replacing some of the light bulbs with compact fluorescent bulbs, and insulating part or all of your exterior walls. Each compact fluorescent light bulb costs $4 and saves you an average of $2 per year in energy ...
*January 28, 2011 by LIZ*

**math**

Lena is tiling a square ﬂoor with each side 3 metres long. Tiles cost $45 per square metre. Which calculation gives the total cost of tiling the ﬂoor (in dollars)?
*March 7, 2012 by Dustine*

**math**

The question is as follows, let c=f(A) be the cost in dollars, of building a store of area A square feet. In terms of cost and square feet what do the following quantities represent? (A) f(10,000) (B) f^-1 (20,000) I am pretty sure the answerfor A is C=10,000 and for part B it...
*August 15, 2008 by Hamilton*

**geometry**

Mr. Rose wants to install wall-to-wall carpeting in his living room. The carpeting will cost $15.50 per square yard, the padding will cost $3.50 per square yard, and the installation is $2.50 per square yard. What will it cost him to carpet the living room which is 13ft by 13ft?
*January 20, 2009 by los*

**finance**

A work at home oppurtunity is available in which you will receive 3 % of sales for customers you refer.The franchise fee is $ 840.00.How much will your customers have to buy to cover the cost?
*January 31, 2011 by tina*

**Math**

What is the cost of laying carpet in a living room that measures 25ft by 15ft. If the cost of the carpet is $15 per square yard (plus tax) and labor is $5 per square yard?
*April 22, 2015 by Destiny*

**Math**

If the floor plan of a new building is shown the building cost $35.00 a saqure foot to construct you need to obtain insurance for the new building .how much insure?
*April 5, 2013 by Becca*

**Math**

If 450 kilowatts of electric used cost 25.32, then how much would 240 kilowatts of electric cost? first find how much one kilowatt costs. so divide 450 kilowatts/$25.32 and you get your answer. then take that answer and multiply to get the cost of 240 kilowatts. I think we ...
*December 12, 2006 by Brodey*

**Algebra**

You plan to put a fence around a rectangular lot. The length of the lot must be at least 60 feet. The cost of the fence along the length of the lot is $1.50 per foot, and the cost of the fence along the width is $2 per foot. The total cost cannot exceed $360. a. Use two ...
*October 30, 2011 by Dawn*

**7th grade math Ms. Sue please**

2. Shelly sews a blanket that has an area of 170 square feet. It has 30 square blocks, each the same size. What is the approximate length of each side of a block? (1 point) 1 foot 2 feet 3 feet 4 feet 3. Which of these numbers can be classified as irrational? (1 point) 1 over ...
*October 24, 2012 by Delilah*

**math**

Taylor is planting 4 trees at the community center.She wonts to leave a 2 square foot area between each one.How many square feet does she need for the trees?
*March 20, 2012 by lynnay*

**math**

a gallon of stain can cover a square deck with an area of 300 square feet. about how long is each side of the deck? round to nearest foot.
*September 3, 2014 by Anonymous*

**AP Calculus AB**

Please Help! Thank you! An observatory is to be in the form of a right circular cylinder surmounted by a hemispherical dome. If the dome costs twice as much per square foot as the cylindrical wall, what are the most economical proportions for the given volume?
*November 12, 2011 by Gary*

**geometry**

John is putting in a concrete patio in his backyard. The dimensions of it are 12ft by 8ft by 6inches. If concrete costs $6.75 per cubic foot how much will the concrete cost for the patio
*June 13, 2011 by Mani*

**Math**

You need to put carpet in a rectangular room that measures 12 feet by 17 feet at a cost of $27.50 per square yard. Assuming that you can buy precisely the amount of carpet you need, how much will the carpet for the room cost? I came up with $1870.00 but Im, not sure if I am ...
*October 27, 2013 by Kelly*

**Physics -- Temp and heat**

Your swimming pool is square and 5.7 m on a side. It is 1.5 m deep in the morning. If the temperature changes by 14°C during the afternoon, how much does the depth of the water increase?
*November 26, 2011 by Anon14*

**Intermediate Algebra**

If a 9-foot tall adult elephant casts an 18-foot shadow, how long is the shadow of the 6-foot zookeeper? Use a proportion to set up and solve an equation. Round your answer to the nearest tenth of a foot if necessary.
*July 12, 2015 by Dora*

**Math**

A dog kennel owner needs to build a dog run (rectangular area) adjacent to a kennel cage (so that it is in the shape of a rectangle, but only three sides need to be built- one long side is already there). The short side walls of the run are to be cinder block (costs $0.50 per ...
*March 26, 2013 by Anonymous*

**geometry**

A football field is 130 yards long and 70 yards wide. If sod costs $0.80 per square foot to lay, how much will the owners have to pay for sodding the entire field?
*November 8, 2009 by kimama*

**accounting**

Computing in the Business World Suppose you are opening a 1,000 square foot baseball card store in a shopping center. You have signed a lease that requires you to pay a monthly rent of $1.75 per square foot, plus 5% of your gross annual sales. What is the total amount of rent ...
*August 29, 2006 by annonymous*

**math Help!!!!!!**

George has a square sandbox in the backyard. The sandbox has an area of 160 square feet. To the nearest foot, what is the length of one side of the sanbox?(Hint: A=s^2 A. 11 ft B. 12 ft C. 40 ft D. 80 ft. Is the answer B? Thanks
*November 5, 2014 by Callie*

**chem**

The specific heat of silver is 0.237 J/goC Its melting point is 961oC . Its heat of fusion is 11 J/g. How much heat (in J) is needed to change 17.5 g of silver from solid at 25oC to liquid at 961oC ? Add the heat required to warm the silver from room temp to the mp. Then add ...
*October 31, 2006 by mary*

**Physics**

How much energy does it extract from the outside air with coefficient of performance 3.85? A heat pump has a coefficient of performance of 3.85 and operates with a power consumption of 6.91 x 10^3 W. The first part of the question asked How much energy does it deliver into a ...
*February 16, 2011 by Z32*

**math**

A rectangular pool's depth is 1m at the shallow end and gradually increases to 4m at the deep end. The pool is 32m in length and 12m width. 1. calculate the total surface area (m squared) of the pool. 2. The cost of painting the pool at $5 per square foot. 3. the amount of ...
*November 29, 2012 by Lindsay*

**Calculus**

A right cicular cylindrical can is to be constructed to have a volume of 57.749 cubic inches (one quart). The sides of the can are to be formed by rolling and welding a strip of metal, which may be purchased in rolls with width equal to the desired height of the can. The ...
*November 28, 2006 by Mike*

**Chemistry**

The specfic heat of iron is 0.11cal/g C. The heat of fusion of iron, the heat required to convert iron from a solid to liquid at its melting point, is 63.7cal/g. Iron melts at 1530 C. How much heat must be added to 2g of iron at 25c to completely melt it?
*March 15, 2013 by Dan*

**math**

Three paintings are shapedlike an8 foot square a 7foot by 4foot rectangle,and a trianglewith a 6-footbase anda height of 7feet. If thosepaintings are hung together on the outside of a building,how much of the building's wall will they cover altogether?
*March 8, 2012 by Anonymous*

**Phase Changes**

The heat of fusion of water is 335 J/g, the heat of vaporization of water is 2.26 kJ/g, the specifc heat of ice is 2.05 J/deg/g, the specific heat of steam is 2.08 J/deg/g and the specific heat of liquid water is 4.184 J/deg/g. How much heat would be needed to convert 10.73 g ...
*May 8, 2013 by Jenny*

**Calc**

A rectangular storage container with an open top is to have a volume of 15m^3. The length of the base is twice the width of the base. Material for the base costs $6 per square meter. Material for the sides costs $7 per square meter. Find the cost of the materials for the ...
*March 29, 2007 by Martina*

**Math**

The Great Pyramid of Giza has a square base with side length of 755 ft. and an original height of 481 ft. Determine its original surface area to the nearest square foot.
*March 31, 2011 by Shawn*

**Physics Heat**

1) Peter is heating water on the stove to boil eggs for a picnic. How much heat is required to raise the temperature of his 10.0-kg vat of water from 20.0℃ to 100.0℃? Formula>> Q=mTcp 2)Under the spreading chestnut tree of the village blacksmith dunks red-hot...
*April 10, 2013 by Isis*

**PreCalc**

The area of a parking lot is 805 square meters. A car requires 5 square meters and a bus requires 32 square meters of space. At most 80 vehicles can park at one time. If the cost to park a car is $2.00 and the cost to park a bus is $6.00, how many buses should be in the lot to...
*August 31, 2010 by Anonymous*

**Math**

Open ended Need HELP PLEASE!!! Mr.Guy isfinishing his patio. The Patio is 14ft. by 4yds. -If each square tile is 2 by 2, how many will he need? -If the tile is 5 dollars each, but he gets every 5th one free, how much will it cost? -If tiles are also sold in boxes of 15 that ...
*March 3, 2008 by Mack*

**MATH**

1.Divide. 0.8/ 14.12 A~17.65? 2.The cost of 36 items is $24.80. What is the cost of an individual item to the nearest cent?A~0.69? 3.Cindy is carpeting a recreation room 24 ft long and 18 ft wide. If the carpeting costs $18 per square yard, what will be the total cost of the ...
*September 20, 2009 by A~*

**MATH HELP PLEASE**

The floor of a rectangular room is to be tiled with 1/3 foot square tiles along a 10 5/8 foot wall. How many tiles will be needed along the wall?
*October 3, 2009 by Anonymous*

**math**

A right cicular cylindrical can is to be constructed to have a volume of 57.749 cubic inches (one quart). The sides of the can are to be formed by rolling and welding a strip of metal, which may be purchased in rolls with width equal to the desired height of the can. The ...
*November 29, 2006 by ashish*

**math**

A cleaner charges $0.50 per square foot to polish wood floors. A school hall has a floor area of 30 feet by 50 feet. What would be the total cost to polish the floor of the school hall? A.$80 B.$375 C.$750 D.$1,500
*March 29, 2013 by Jessica*

**math**

a cleaner charges $0.50 per square foot to polish wood floors. a school hall has a floor area of 30 feet by 50 feet. what would be the total cost to polish the floor of the school hall? A. $80 B. $375 C $750 D $1,500 I think it is C.
*March 27, 2013 by jenny*

**Physical Science**

A 5.00 kg block of ice at –25 oC is converted to steam at 125 oC. How much energy (in kilojoules) is expended in this process? The following data are provided: a. Specific heat of ice = 2.092 J/g oC b. Latent heat of fusion = 334.72 J/g c. Specific heat of water = 4.184 J/g oC...
*October 27, 2014 by Ashley*

**Oceanography**

How much heat must be added to turn 3 grams of water at 100°C into a vapor and what will be the final temperature after this much heat is added
*July 7, 2011 by Pat*

**geometry**

A swimming pool is 30 feet wide and 60 feet long. If it is surrounded by square tiles, each of which is 1 foot by 1 foot, how many tiles are there surrounding the pool?
*December 1, 2011 by Anonymous*

**PRE CALC HELP PLEASE**

A plumber, electrician and painter were all hired to work on 3 different house. For Adam's house, a plumber worked a total of 35 hours, an electrician worked 42 hours and a painter needed 29 hrs to complete the job. the total cost of the three workers for adam's house was $2,...
*May 24, 2014 by Aly*

**Geometry**

If a rectangular lot measures 120 ft. x 80 ft., and 10 foot set backs are required from each lot line, how much area is left? If a kennel for 50 dogs requires 12,500 square feet, how many dogs can be accommodated in the small rectangle?
*January 18, 2011 by Ivan*

**Math**

pls help! The cost to the chicago tribune for sunday home delivery is approximately $0.53 per newspaper with fixed costs of $1,070,00.Write an equation that relates the cost C and X of copies delievered.
*February 18, 2010 by Jackie*

**Bus Finance**

You want to purchase a home. cost $165,000. you have $40,000 downpayment. you want to finance rest at 3.5% for 15 years. how much will monthly mortgage be? How much in total will you pay over the 15 years even counting the downpayment? I came up with payment of $893.6 for ...
*February 3, 2012 by allison*

**math**

A right cicular cylindrical can is to be constructed to have a volume of 57.749 cubic inches (one quart). The sides of the can are to be formed by rolling and welding a strip of metal, which may be purchased in rolls with width equal to the desired height of the can. The ...
*November 29, 2006 by jenni*

**MATH**

just want to check my work on a few things.... 1. Tile for a kitchen counter will cost $8 per square foot to install. If the counter measures 14 ft by 3 ft, what will the tile cost? Answer-336 2. Estimate the result in the following division problem. (Remember to round ...
*September 5, 2009 by A*

**Calculus**

A rectangular garden of area 75 sq ft is to be surrounded on 3 sides by a brick wall costing $12 per foot and on one side by a fence costing $7 per foot. Find the dimensions of the garden that the cost of the materials is minimized Read more: A rectangular garden of area 75 sq...
*February 21, 2012 by math*

**specific heat capacity**

How much heat would be required to heat 1 gram of pure liquid water from 10C to 20C? How would i approach this problem?
*September 26, 2011 by D*

**math**

A softball diamond is a square with sides of 60 feet long. How far is home plate to second base? Round to the nearest tenth if necessary. 60 Home plate, first base, and second base form a right-angled triangle, with home plate to second as the hypotenuse. Call that distance h ...
*April 9, 2007 by ana*

**Managerial Econmics**

Suppose you own a home remodeling company. You are currently earning short- run profits. The home remodeling industry is an increasing- cost industry. In the long run, what do you expect will happen to … a. …your firm’s costs of production? Explain. b. …the price you can ...
*October 31, 2010 by Roger*

**math**

gary wants to stain the 15-foot-by-15-foot deck in his backyard. one can of stain covers 200 square feet of surface. is one can of stain enough to cover his entire deck?
*September 7, 2010 by deava*

**Algebra 2**

The strength of a beam varies inversely with the square of its length. If a 15-foot beam can support 500 pounds, how many pounds can a 20-foot beam support? A) 261.15 B)279.33 C)281.25 D)732.50
*April 18, 2013 by Anonymous*

**Accounting**

Materials used by Square Yard Products Inc. in producing Division 3's product are currently purchased from outside suppliers at a cost of $5 per unit. However, the same materials are available from Division 6. Division 6 has unused capacity and can produce the materials needed...
*July 28, 2013 by Tee*

**chemistry**

the heat of fusion water is335 J/g. The heat of evaporization of water is 2.26 kJ/g, the specific heat of ice is 2.05 J/Deg/g, the specific heat of steam is 2.08 J/deg/g and the specific heat of liquid water is 4.184 J/deg/g. How much heat would be needed to convert 12.09 g of...
*April 24, 2012 by Randy*

**science**

When you freeze water, 80 calories of heat are released into the surroundings for every gram of water that freezes. This is known as the "latent heat of fusion" of water, which is 80 cal/g. Heat of fusion is a characteristic property. Theoretically, if you could "capture" all ...
*January 31, 2011 by Elizabeth*

**math**

a kithen is 4 yards wide and 5 yards long.how much will it cost to cover the floor with linoleum at $16 a square yard
*March 21, 2011 by laura*

**math**

a kithen is 4 yards wide and 5 yards long.how much will it cost to cover the floor with linoleum at $16 a square yard
*March 21, 2011 by laura*

**Pre-Algabra**

Unfortunately for mariners, the total amount of wave energy in a storm doesnt depend on the first power of wind speed, but on the fourth power. The seas generated by forty knot wind arent twice as violent as those from a twenty knot wind, they are 17 times more violent. A ...
*February 8, 2008 by Mackenzie*

**Math**

Jim's sandwich cost the same as the comjbined cost of his salad and milk. The sandwich cost three times as the milk. The salad cost $0.20 more than twice the cost of the milk. How much did Jim's lunch cost?
*December 1, 2011 by Billy*

**physics**

(a) How much heat (J) flows from 1.00 kg of water at 46.0°C when it is placed in contact with 1.00 kg of 18°C water in reaching equilibrium? (b) What is the change(J/K) in entropy due to this heat transfer? (c) How much work (J) is made unavailable, taking the lowest ...
*July 25, 2013 by Justin*

**physics**

(a) How much heat (J) flows from 1.00 kg of water at 46.0°C when it is placed in contact with 1.00 kg of 18°C water in reaching equilibrium? (b) What is the change(J/K) in entropy due to this heat transfer? (c) How much work (J) is made unavailable, taking the lowest ...
*July 26, 2013 by Justin*

**physics**

(a) How much heat (J) flows from 1.00 kg of water at 46.0°C when it is placed in contact with 1.00 kg of 18°C water in reaching equilibrium? (b) What is the change(J/K) in entropy due to this heat transfer? (c) How much work (J) is made unavailable, taking the lowest ...
*July 28, 2013 by Justin*

**physics**

(a) How much heat flows from 1.00 kg of water at 46.0°C when it is placed in contact with 1.00 kg of 18°C water in reaching equilibrium? (b) What is the change in entropy due to this heat transfer? (c) How much work is made unavailable, taking the lowest temperature to be 18°C?
*July 28, 2013 by Justin*

**physics**

(a) How much heat (J) flows from 1.00 kg of water at 46.0°C when it is placed in contact with 1.00 kg of 18°C water in reaching equilibrium? (b) What is the change(J/K) in entropy due to this heat transfer? (c) How much work (J) is made unavailable, taking the lowest ...
*July 28, 2013 by Justin*

**math**

The price of a home is $215,000. The Bank requires 20% down payment and three points at the time of closing. The cost of the home is financed with a 30-year fixed-rate mortgage at 7%. Find down paymen
*November 25, 2012 by Anonymous*

**English**

Just one more thing. Which of the following sentences are grammatical? Thank you very much for your cooperation. 1.I spent most of my holiday at home. 2. I spent the greatest part of my holiday at home. 3. I mainly/mostly stayed at home during my holiday. 4.For the most part, ...
*January 7, 2014 by Frank*

**calculus?**

Hello can u help? I need a solution to calculus problem I have $500.00 to spend on fencing for a garden. The fence for the street side costs $30.00 per foot and the other three sides cost $10.00 per foot. what dimensions will give you a rectangle for the largest possible area...
*July 14, 2012 by GiGi*

**problem solving**

You need to put a carpet in a rectangular room that measures 13 feet by 22 feet as a cost of $19.50 per square yard. Assuming that you can buy precisely the amount of carpet you need, how much will the carpet for the room cost? Demonstrate step-by-step solution. I got $1,858....
*December 8, 2012 by ben*

**Math**

What are the solution sets of the following 3 problems,the square root of x squared + 3x = x-3, the square root of 3x + 10 = x + 4 and finally the square root of 8x - 2 = the square root of 2x? Help much appriciated. I will one as an example. sqrt(3x + 10) =x+4 I hope that is ...
*January 13, 2007 by Joseph B.*

**SCIENCE QUESTION**

LEAD IS A SOFT, DENSE METAL WITH A SPECIFIC HEAT OF 0.028KCAL/KGC, A MELTING POINT OF 328.0C, AND A HEAT FUSION OF5.5KCAL/KG. HOW MUCH HEAT MUST BE PROVIDED TO MELT A 250.0KG SAMPLE OF LEAD WITH A TEMPERATURE OF 20.0C? Figure the heat to heat if from 20C to the melting point (...
*October 7, 2006 by priscilla*

**trig **

A 115 foot foot casts a 147 foot shadow, what is the degree of elevation to the sun
*June 28, 2011 by mike *

**English**

Can someone tell me what's the British for the words "common trash barrels", "sorted trash", "regular kitchen" trash or food/garden waste? Thank you I'm quite environmentally friendly. I have three containers at home into which to sort my trash. One is for paper; one is for ...
*January 14, 2014 by Frank*

**math**

the cost of 6oz. of chicken is $2.00. how much would it cost for 1.5lbs. of chicken ? (16oz=1lb.) 2 simple ways: 1. if 6 oz cost 2.00 then 1 oz costs 2.00/6 = .3333. and then 16 oz cost 16(.3333..) =5.33 2. by ratios 2.00/6 = x/16 cross multiply and solve for x you will get ...
*April 23, 2007 by christina*

**Physics**

A 250kg box is pushed horizontally with a force of 750 Newtons. If the coefficient of friction is 0.25, calculate the net acceleration of the crate. I am confused how I am to find the net acceleration. I solved to find FN and FG is 2452 N is that correct
*November 24, 2014 by rina *

**epoka university**

1) The cost that is related to the particularly cost object and can be traced to it in an economically feasible (cost-effective) way is called: o Indirect cost o Cost tracing o Direct cost o Variable cost
*November 21, 2012 by evisa gjoni*

**Math**

The floor of a rectangular room is to be tiled with 1/3 (fraction) foot square tiles along a 10 5/8 (fraction) foot wall. How many tiles will be needed along the wall? Would I multiply 10 5/8 times 1/3 to get the answer?
*October 17, 2009 by Anonymous*

**Manageral accounting**

Gallatin Carpet Cleaning is a small, family-owned business ooperating out of Bozeman, Montana. For its services, the company has always charged a flat fee per hundred square feet of carpet cleaned. The current fee is $28 per hundred square feet. However, there is some question...
*August 6, 2011 by Belynda*

**maths**

it cost $2592.00 to fence a square field wire cost $18.00 per metre calculate area and side
*May 5, 2013 by Anonymous*

**Physics - Fluids**

A freezer contains 20 kg of food with a specific heat of 2 x 10^3 J/kgC. The freezer motor then operates for 10 minutes reducing the temperature to -8 degrees Celsius. a) How much heat is removed from the food during this time? The freezer motor operates at 400 watts. b) How ...
*December 17, 2008 by Peter*

**business math **

If refinishing your basement at a cost of $44,568 would add $18,520 to the resale value of your home, what percent of your cost is recouped? (Round to the nearest percent.)
*July 7, 2014 by jahnesha*

**chemistry**

When 47.5J of heat are added to 13.2 g of liquid, its temperature rises by 1.72 degrees C. What is the heat capacity of the liquid? A cook wants to heat 1.35kg of water from 32.0 degrees C to 100 degrees C. If he uses combustion of natural gas to heat the water, hou much ...
*September 21, 2012 by Alyssa*

**chemistry 101**

How much alcohol must be burned to generate 279kj of heat to warm the water as described in problem 3? (60F to 180F) I've seen where they say the answer is (mass of alcohol)(heat ofcombustion)=279 and you solve for mass. However how am I to know which heat of combustion to use...
*April 15, 2012 by Anonymous*

**Math**

A rectangular room measures 15ft by 21ft. How much will it cost to carpet this room if carpeting costs $17.95 per square yard?
*January 10, 2012 by Sara*

**math**

Suppose that you are responsible for predicting the cost of constructing a new office building. You find that the first story costs 500 dollars per square meter of floor space, and the second story costs 600 dollars per square meter. Assume that the costs per square meter form...
*May 4, 2012 by Kim*

**Chemistry**

How much energy as heat is removed from the hand when 5.00 grams of Ga initially at 20 degrees C melts? The value of Heat Fusion is 5.576 kJ-mol and the specific heat of Ga is 0.374 J-g-K. Take the final temp to be 29.76 degrees C.
*February 7, 2013 by Student*

**Chemistry**

How much energy as heat is removed from the hand when 5.00 grams of Ga initially at 20 degrees C melts? The value of Heat Fusion is 5.576 kJ-mol and the specific heat of Ga is 0.374 J-g-K. Take the final temp to be 29.76 degrees C.
*February 8, 2013 by Student*

**math**

A right cicular cylindrical can is to be constructed to have a volume of 57.749 cubic inches (one quart). The sides of the can are to be formed by rolling and welding a strip of metal, which may be purchased in rolls with width equal to the desired height of the can. The ...
*November 29, 2006 by Jessica Griffis*

**geometry**

A square playground has a perimeter of 2800 feet. It has a paved 6-foot walkway around it. What is the area of the walkway in square feet?
*January 18, 2015 by Marcia*