Saturday

December 10, 2016
Number of results: 61,132

**Physics **

The melting point of aluminum is 660°C, its latent heat of fusion is 4.00 × 105 J/kg, and its specific heat is 900 J/kg • K. If 300 kJ of heat are added to 442 g of aluminum at 100°C, what is the final state of the system? That is, how much is liquid, how much is solid, ...

*March 10, 2016 by MB*

**home economics**

The economist for the Grand Corporation has estimated the company’s cost function, using the times series data to be TC=50+16Q-2Q2+0.2Q3 a. Plot this curve for quanties 1 to 10 b. Calculate the average total cost, average variable cost and marginal cost for these quanties, ...

*February 23, 2008 by Anonymous*

**chemistry **

Five kg of ice cubes are moved from the freezing compartment of a refrigerator into a home freezer. The refrigerator's compartment is kept at -4.0 celsius. the home freezer is kept at -17 celsius. How much heat does the freezer's cooling systeam remove from the ice cube?

*April 6, 2010 by evelyn *

**Physics**

How much heat is added to a 10.0 g of ice at -20.0 degrees Celsius to convert it to steam at 120.0 degrees Celsius? compute and add the following heats: heat to heat ice from -20C to 0C heat to melt ice at 0C Heat to heat water from 0 to 100C heat to convert water to steam at ...

*March 5, 2007 by Marie*

**Math**

A walking area around a pool is going to be frfinished with a nonslip surface. If it costs $17 per square foot to install what is the total cost? Inner rectangle is length 20 ft by width 10 ft. Outer dimensions of walkway are 14 length by 10ft. I have no idea how to set up ...

*October 7, 2016 by Marty*

**math**

The scale on a floorplan indicates that 1 foot is equivalent to 1/4 of an inch. A room that measures 160 square feet is represented by how many square inches???

*October 29, 2015 by mahima*

**algebra**

An open-top box is to be constructed from a 6 foot by 8 foot rectangular cardboard by cutting out equal squares at each corner and the folding up the flaps. Let x denote the length of each side of the square to be cut out. a)

*March 7, 2007 by Jade*

**math**

An open-top box is to be constructed from a 6 foot by 8 foot rectangular cardboard by cutting out equal squares at each corner and the folding up the flaps. Let x denote the length of each side of the square to be cut out. a)

*March 10, 2007 by alesia*

**Math**

preparing to make 4 white tents you discover each one will require 2.5 square yards of silk. If each square yard of silk costs $4.00, how much will it cost to make all the tents? Do I multiple 2.5 times $4.00 to get the answer?

*January 22, 2015 by Dee*

**Math (trigonometry)**

A baseball diamond is actually a square with each side approximately 27.4 m. The pitcher's mound is 18.4 m from home plate on the diagonal of the square - note that the pitcher's mound is NOT located at the centre of the diamond! a) How far (to 3 decimal places) from the ...

*December 2, 2012 by Sammy*

**Chemistry**

Compounds like CCL2F2 are known as chloroflourocarbons, or CFCs. These compounds were once widely used as refrigerants but are now being replaced by compounds that are believed to be less harmful to the environment. The heat of vaporization of CCl2F2 is 289J/g. What mass of ...

*December 14, 2006 by Jenn*

**Microeconomics**

1.You plan a major adventure trip for the summer. You won’t be able to take your usual summer job that pays $6,000, and you won’t be able to live at home for free. The cost of your travel on the trip will be $3,000, film and videotape will cost you $200, and your food will...

*November 14, 2010 by yt*

**geometry**

If you had a room that is 10 foot by 12 foot in the shape of a rectangle, and one gallon of paint covers about 350 square feet, how many gallons of paint would you have to buy if you were painting the walls and the ceiling?

*February 21, 2012 by Courtney*

**math**

if asphalt costs $0.78 per square foot, determine, to the nearest cent, the cost of paving the shaded circular road with center O, an outside radius of 50 feet, and an inner radius of 36 feet. (the big circle is shaded)

*April 9, 2011 by Mingma*

**math-optimal diameterand height**

A cylindrical oil-storage tank is to be constructed for which the following costs apply: cost per square meter metal for ides $30.00 combined costs of concrete base and metal bottom $37.50(cost per square meter) top 7.50 (cost per square meter) The tank is to be constructed ...

*November 18, 2010 by Alicia*

**Calc.**

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 John*

**English**

1. Do you mind moving your foot? 2. Point your right foot downward. 3. I'm sorry (that) I stepped on your foot. 4. I'm sorry to have stepped on your foot. 5. I'm sorry to step on your foot. 6. I'm sorry that I step on your foot. ---------------- Are they all grammatical? Do ...

*May 17, 2016 by rfvv*

**Math**

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

*February 18, 2016 by Amina*

**chemistry**

The molar heat capacity of Al is 24.4j/mol. How much heat is required to heat 100g of Al from 20 to 80? Al=27

*October 24, 2015 by Komolafe *

**Math**

Geddy has a pool with a volume of 25.0m^3. It costs $2.35 per cubic foot (ft^3) to clean. How much will it cost to clean the pool?

*September 22, 2015 by Julia*

**Calculus**

A certain magical substance that is used to make solid magical spheres costs per cubic foot. The power of a magical sphere depends on its surface area, and a magical sphere can be sold for per square foot of surface area. If you are manufacturing such a sphere, what size ...

*December 1, 2011 by JEUCD 12/1/11*

**Chemistry**

How much heat is either ______(absorbed or given off) when 91.45g of HI decomposes to H2 and I2 at 25 degrees C? What goes in the blank and how much heat? Thanks!

*April 29, 2012 by Greg*

**Mathmatics**

The highway department keeps its sand in a conical storage building that is 24 feet high and 64 feet in diameter. To estimate the cost of painting the building, the lateral surface area of the cone is needed. To the nearest square foot, what is the area?

*April 13, 2010 by Yadlay*

**Algebra**

a rectangular lot whose perimeter is 1600 feet is fenced on three sides. An expensive fencing along the lot's length cost $20 per foot, and an inexpensive fencing along the two side widths costs $5 per foot. The total cost of fencing along the three sides comes to $13000. What...

*January 19, 2015 by Micah*

**geometry**

Alice purchased 30 decorative stone square blocks to create an enclosed rectangular garden area. Each square block measures 1 foot by 1 foot, and one possible arrangement is shown. Including the arrangement shown, in how many distinct ways can Alice arrange the blocks to ...

*July 5, 2014 by Cara*

**Science**

I'm going crazy! The heat necessary to change the state of water between a solid and a liquid is called the latent heat of vaporization, latent heat of solidification, latent heat of fusion, latent heat of liquefaction, or none of the above. I thought it was none of the above...

*December 8, 2006 by Pat*

**material science**

How much heat (in BTU) would be required to heat and vaporize 100 lb of water from 25°C to saturated steam at 1 atm? Assume heat capacity is constant at 1 BTU/lb-°F and the latent heat of vaporization is 1,000 BTU/lb

*January 19, 2011 by zura*

**math**

A peice of durian cake costs $4.80.A 3 peice of yam cake cost - times as much 4 as the durian cake.how much do the 2 peices of cake cost altogether? Please rewrite this with the numbers 3 and/or 4 in the right places. The question makes no sense as written. A single number ...

*August 23, 2005 by tan chin yong*

**Algebra**

Manuel plans to install a fence around the perimeter of his yard. His yard is shaped like a square and has an area of 40,000 square feet. The company that he hires charges $2.50 per foot for the fencing and $50.00 for the installation fee. Write a function, g(x), to represent ...

*October 19, 2016 by Ana*

**Calculus Follow Up**

A farmer wishes to build a fence for 6 adjacent rectangular pens. If there is 600 feet of fencing available, what are the dimensions of each pen that maximizes total pen area? The image looks like this: box box box box box box also: If the interior fencing is $3.00 per foot ...

*April 10, 2013 by Henry*

**math**

Each side of a square classroom is 9 yards long. The school wants to replace the carpet in the classroom with new carpet that costs $88.02 per square yard. How much will the new carpet cost?

*March 2, 2016 by Irene*

**trig**

How much does it cost to paint a triangular surface of sides 6m,5m, and 11m at the rate of rs.20/-per metre square.

*December 3, 2014 by sanjay*

**math**

Ramon is to carpet the bedroom and the living rpom of his apartment. Find the area of the carpet he needs to order. If the carpet costs Php150 per square foot, how will his order cost Illustration 10 ft 15 ft. ------ I-------- 8 ft. I squIare I 8 ft. I I I ------I------- I I I...

*September 4, 2014 by mia*

**math**

a man paid $8.50 for a small pump and 8 feet of tubing.he paid 12 times as much for the pump as for each foot of tubing.how much did the pump cost? the tubing?

*March 1, 2010 by chris*

**Math**

If fencing cost $7 per foot find the total cost of fencing a rectangular garden 36ft by by 12ft

*November 1, 2014 by Anonymous*

**CHEMISTRY**

How much heat is needed to melt 150g of ice? and How much heat is needed to change 150g of ice into steam at 110 degrees? My heat of fusion is 361 and my percent error is 8 if you need that. Answers quickly please :(

*March 8, 2011 by TaShe*

**Algebra**

Use the quadratic formula to solve the equation. Give exact answers: 2x^2 -1 = 6x. The choices are: a) -3 + square root(7)/2, -3 - square root(7)/2 b) 3 + square root(11)/2, 3 - square root(11)/2 c) 3 + square root(7)/2, 3 - square root(7)/2 d) -3 + square root(11)/2, -3 - ...

*June 3, 2009 by Hope*

**algebra**

In the promotional park your company has budgeted $40,000 for some High Quality Astroturf and trees for a miniature golf course. The company plans on laying out 4,000 square feet of High Quality Astroturf, which costs $5.50 per square foot. The trees that your company wants to...

*May 16, 2011 by Anonymous*

**college algebra**

a rectangular lot whose perimeter is 440 feet is fenced along three sides. an expensive fencing along the lot's length cost $16 per foot, and an inexpensive fencing along the two side widths costs only $11 per foot. The total cost of the fencing along the three sides comes to...

*June 18, 2013 by corea *

**chemo**

How much heat (in kJ) does it take to melt 28.4 grams of ice at 0 °C and raise the temperature of the resulting water to 25 °C? Heat of fusion 334 J/g, Specific heat 4.184 J/g °C ?

*October 29, 2013 by melissa*

**Math**

A rectangular house measures 75ft by 50ft. Find the cost of installing gutters around the house if the cost is $4per foot?

*March 22, 2015 by Keisha*

**math**

a rectangular swimming pool is 15 yds x 25 yds. the bottom of the pool needs to be repainted. if it costs $4.25 per square foot to paint the pool, give the cost to repaint the bottom of the pool.

*January 17, 2012 by Sara*

**Math - 8th Grade**

Please help: The distance from home plate to second base on a softball diamond is 84.853 feet. This is the same as the distance from first base to third base. What is the area of a softball diamond? Round your answer to the nearest square foot. 1,800 ft.2 3,558 ft.2 7,200 ft.2...

*May 29, 2013 by Christopher *

**the lagrange multiplier equation**

A cylindrical oil-storage tank is to be constructed for which the following costs apply: cost per square meter metal for sides $30.00 (cost per square meter) combined costs of concrete base and metal bottom $37.50(cost per square meter) top 7.50 (cost per square meter) The ...

*November 15, 2010 by sunny*

**Math**

Can you help me? 360 in^ = _____ ft^ ( ^ means 2 ) So which would the answer be: 30, 3.6, 2.5, or 1.8 Wouldn't it be 30? (If I'm working this right)! Thank you!! Thank you A square foot = 12 inches by 12 inches = 144 square inches. What does dividing that into 360 square ...

*February 28, 2007 by Bobby*

**Math**

1. Scale is 1 in.= 3 ft. If the room is 8 inches long and 2 inches wide on a blueprint, how much will it costs to clean the carpet if the costs is $15 per square foot?

*February 25, 2015 by Edward*

**Math**

Ms. Fisher is using 64 carpet tiles to make a reading area in her classroom. Each tile is square that measures 1 foot by 1 foot. What is.the length and width of the rectangular area she can make with the smallest possible perimeter?

*February 27, 2014 by Sharon*

**Economics**

The general supply function for new housing in Miami is estimated to be Qs=96+2P-10Pl-4Pk where P is the price per square foot of new housing in Miami, PL is the average hourly wage rate for construction workerw, and PK is the price of capital (as measured by the average rate ...

*September 4, 2010 by Managerial economics*

**Algebra 1A**

Home Size The average size F in square feet of new U.S. homes built during year x is estimated by the formula F = 34x - 65,734, where x is any year from 2002 to 2008. In which year was the average home size 2504 square feet?

*May 17, 2012 by Nini*

**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*

**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**

Rental cost for offices spaces have been going up at 6.2% per year compounded annually for the past 5 years. If office space rent is now $32 per square foot per month, what were the rental rates 5 years ago

*February 26, 2012 by momo*

**Economics**

Consider a monocentric city in which the cost of commuting is $10 per mile per month. A household located eight miles from the city center occupies a dwelling with 1,200 square feet at a monthly rent of $600. Nonland cost per dwelling is $200, and there are four houses per ...

*May 5, 2009 by eStone*

**Math**

your management company was hired to take over the maintenance of the room. last year the old floor tiles were replaced with spanish portico special ceramic tiles. the tiles cost $13.50 per square foot. the owner paid $6534 for the tiles. Determine the area of the room!!

*September 20, 2015 by Student*

**Math**

Ignoring the walls’ thickness, determine the outside dimensions that will minimize a closed box’s cost if it has a square base and top, if its volume is 32 cubic meters, and if the cost per square meter for the top, bottom, and sides respectively are $.03, $.04, and $.05...

*April 4, 2013 by Sunny *

**Math**

Ignoring the walls’ thickness, determine the outside dimensions that will minimize a closed box’s cost if it has a square base and top, if its volume is 32 cubic meters, and if the cost per square meter for the top, bottom, and sides respectively are $.03, $.04, and $.05...

*April 4, 2013 by Sunny *

**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*

**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*

**math**

Mr.silverman is tiling his rectangular kitchen floor. The dimensions of the floor are 12 2/3 ft by 10 1/8 ft.The tile he wants costs $1.80 per square foot. About how much will he have to pay for tile?

*October 27, 2011 by gary*

**math**

A cleaner charges $0.50 per square foot to polish wood floors. A school hall has an 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 What is the answer?

*March 26, 2013 by jenny*

**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*

**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*

**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 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*

**Algebra I**

Son brought home a hand made worksheet that teacher did not go over and can't find examples anywhere. Multiply each expression by its conjugate. A. Square root of (13)-2 B. 2+3Square root (5) C. Square root(3) minus Square root(7) Thanks

*March 15, 2016 by Mom*

**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**

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**

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**

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*

**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*

**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*

**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*

**Math**

A 20 foot piece of rope will be cut into as many 3 and 1\2 foot section as possible. how much rope will be left over?

*April 19, 2016 by Tammy*

**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*

**Algebra**

Put in order from smallest to largest 12 6 square root 5 20 9 square root 6 16 square root 7 5 -48 11 8 - square root 3 -60 5/6 2 square root 5/5 - square root 3 +2/5 The square root us confusing my son. Thanks so much

*March 24, 2016 by Mom*

**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*

**Allan Hancock College**

A rectangular lot whose perimeter is 260 ft is fenced along three sides. An expensive fencing along the lot's length cost $ 36 per foot. An inexpensive fencing along the two side widths costs only $ 6 per foot. The total cost of the fencing along the three sides comes ...

*August 29, 2015 by Kathie*

**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*

**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*

**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*

**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*

**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*

**math help **

Hayley wants to purchase tile for the floor in a rectangular room that measures 15 feet by 14 feet. The tile costs $4.25 per square foot. Sales tax is 6.5%. What will be the total cost to cover Hayley’s floor with tile?

*January 18, 2016 by jhon *

**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*

**math**

A museum groundskeeper is creating a semicircular statuary garden with a diameter of 30 feet. There will be a fence around the garden. The fencing costs $9.25 per linear foot. About how much will the fencing cost altogether? THANK YOU!

*December 27, 2015 by Tim*

**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*

**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*

**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*

**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*

**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*

**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*

**Chemistry**

Heat from burning a fuel is absorbed by a copper calorimeter. The calorimeter has a mass of 81.34 g and contains 200.0 g of water initially at 21 degrees Celsius. a) How much heat was absorbed by the calorimeter and the water if the final temperature of the water is 36.40 ...

*October 20, 2016 by lomonoyan*

**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*

**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 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*

**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*