document.write( "Question 160111: A contractor orders 8 cubic yards of premixed cement, all of which is to be used to pour a patio that will be 4 inches thick. If the length of the patio is specified to be twice the width, what will be the patio dimensions? \n" ); document.write( "
Algebra.Com's Answer #118077 by checkley77(12844)\"\" \"About 
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8yd^3=8*3*3*3=216 ft^3
\n" ); document.write( "Volume=l*w*d (length, width, depth)
\n" ); document.write( "216=2w*w*1/3
\n" ); document.write( "216=2w^2/3
\n" ); document.write( "2w*2=216*3
\n" ); document.write( "2w^2=648
\n" ); document.write( "w^2=648/2
\n" ); document.write( "w^2=324
\n" ); document.write( "w=18 ft. is the width.
\n" ); document.write( "2*18=36 ft. is the length.
\n" ); document.write( "Proof
\n" ); document.write( "18*36*1/3=216
\n" ); document.write( "648/3=216
\n" ); document.write( "216=216
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