document.write( "Question 957639: A rectangular cement patio has an area of 80 square meters. Its perimeter is 36 meters. What are the dimensions of the patio?
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Algebra.Com's Answer #585214 by macston(5194)\"\" \"About 
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A rectangular cement patio has an area of 80 square meters. Its perimeter is 36 meters. What are the dimensions of the patio?
\n" ); document.write( "L=length; W=width; P=perimeter=36m; A=area=80sqm
\n" ); document.write( "P=2(L+W)
\n" ); document.write( "36m=2(L+W) Divide each side by 2.
\n" ); document.write( "18m=L+W Subtract W from each side
\n" ); document.write( "18m-W=L
\n" ); document.write( "\"A=L%2AW\" Substitute for L.
\n" ); document.write( "\"A=%2818m-W%29%28W%29\"
\n" ); document.write( "\"A=18Wm-W%5E2\" Plug in value for A.
\n" ); document.write( "\"80m%5E2=18Wm-W%5E2\" Subtract 80m^2 from each side.
\n" ); document.write( "\"0=-x%5E2%2B18Wm-80m%5E2\" Multiply each side by -1.
\n" ); document.write( "\"0=x%5E2-18W%2B80\"
\n" ); document.write( "\"0=%28W-8%29%28W-10%29\"
\n" ); document.write( "\"W=8m\" or \"W=10m\" ANSWER 1: Width is 8 meters.(or 10m)
\n" ); document.write( "18m-W=L
\n" ); document.write( "18m-8m=L
\n" ); document.write( "10m=L ANSWER 2: Length is 10 meters. (or 8m)\r
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