document.write( "Question 401977: The length of a rectangle is six times its width. if the perimeter of the rectangle is 84ft find its area? \n" ); document.write( "
Algebra.Com's Answer #284833 by sofiyac(983)\"\" \"About 
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let the width be x, then length is 6x
\n" ); document.write( "2*w+2*l=P
\n" ); document.write( "2x+2*6x=84
\n" ); document.write( "2x+12x=84
\n" ); document.write( "14x=64
\n" ); document.write( "x=6
\n" ); document.write( "so width is 6, then length is 6*6=36
\n" ); document.write( "so area is A=l*w
\n" ); document.write( "A=6*36=216
\n" ); document.write( "
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