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)![]() ![]() You can put this solution on YOUR website! 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( " |