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document.write( " A rectangle is 4 times as long as it is wide. The area is 196 square feet. What is the perimeter of the rectangle? \n" );
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Algebra.Com's Answer #434133 by checkley79(3341)![]() ![]() ![]() You can put this solution on YOUR website! PERIMETER=2L+2W \n" ); document.write( "L=4W \n" ); document.write( "196=2*4W+2W \n" ); document.write( "196=8W+2W \n" ); document.write( "196=10W \n" ); document.write( "196/10=W \n" ); document.write( "19.6=W ANS. \n" ); document.write( "L=4*19.6 \n" ); document.write( "L=78.4 ANS. \n" ); document.write( "PROOF: \n" ); document.write( "196=2*78.4+2*19.6 \n" ); document.write( "196=156.8+39.2 \n" ); document.write( "196=196 \n" ); document.write( " |