document.write( "Question 1196036: Please help with the homework:
\n" ); document.write( "Justin is remodeling his garden and decides to create a simple swimming pool. He plans to dig and build out a rectangular hole and line it with spray on cement. The dimensions of the walls are as follows: height= 1.5m, length=5m and breadth=3m.
\n" ); document.write( "1.1. what is the surface area of the inside of the pool?
\n" ); document.write( "1.2.The pool will be covered in two layers of cement.Calculate how much it would cost to line the pool if the cement cost R150.00 per square meter.
\n" ); document.write( "1.3. Calculate the percentage of the pool that could be filled by the water in the tank. (Remember 1m^3 =1000litres). \n" ); document.write( "

Algebra.Com's Answer #828717 by ikleyn(52787) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( " Calculations and the numbers in the post by @MathLover1 are incorrect.\r
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document.write( "height =  1.5m\r\n" );
document.write( "length =  5m  \r\n" );
document.write( "breadth = 3m \r\n" );
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document.write( "1.1. what is the surface area of the inside of the pool?\r\n" );
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document.write( "the surface area of the inside of the pool is the area of the bottom plus the area of the sides\r\n" );
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document.write( "the area of the bottom is length*breadth = 5m*3m = 15 m^2          <<<---=== my correction is here\r\n" );
document.write( "the area of the two parallel sides is 2*length*height = 2*5m*1.5m = 15m^2\r\n" );
document.write( "the area of the two other parallel sides is   2*breadth*height = 2*3m*1.5m=9 m^2\r\n" );
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document.write( "the surface area of the inside of the pool is\r\n" );
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document.write( "    Surface Area = 15m^2 + 15m^2 + 9m^2 = 39m^2.  ANSWER           <<<---=== my correction is here\r\n" );
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document.write( "1.2. The pool will be covered in two layers of cement. Calculate how much it would cost to line the pool \r\n" );
document.write( "if the cement cost R150.00 per square meter.    //  I assume that R150.00 is the cost of one layer per square meter.\r\n" );
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document.write( "       R 150.00*2*39 = R 11700.                   ANSWER           <<<---=== my correction is here\r\n" );
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document.write( "1.3. Calculate the percentage of the pool that could be filled by the water in the tank. (Remember 1m^3 =1000litres).\r\n" );
document.write( "     \r\n" );
document.write( "     This percentage is between 0% to 100%, and can not be calculated precisely, \r\n" );
document.write( "     since the volume of the water in the tank is not given in the post.\r\n" );
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\n" ); document.write( "\n" ); document.write( "Solved (in a right way).\r
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