document.write( "Question 234754: A park has an area of 64 square meters and a perimeter of 40 meters. Please tell me the length and width of the park.
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document.write( "Thanks,
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document.write( "Deana \n" );
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Algebra.Com's Answer #173082 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! LW=64 L=64/W \n" ); document.write( "2L=2W=40 \n" ); document.write( "2(64/W)+2W=40 \n" ); document.write( "128/W+2W=40 \n" ); document.write( "128/W=40-2W CROSS MULTIPLY. \n" ); document.write( "128=W(40-2W) \n" ); document.write( "128=40W-2W^2 \n" ); document.write( "2W^2-40W+128=0 \n" ); document.write( "2(W^2-20W+64)=0 \n" ); document.write( "2(W-16)(W-4)=0 \n" ); document.write( "W-16=0 \n" ); document.write( "W=16 ANS. \n" ); document.write( "W-4=0 \n" ); document.write( "W=4 ANS. \n" ); document.write( "L=64/16=4 ANS \n" ); document.write( "L=64/4=16 ANS \n" ); document.write( "PROOF: \n" ); document.write( "2*16+2*4=40 \n" ); document.write( "31+8=40 \n" ); document.write( "40=40 \n" ); document.write( "----------- \n" ); document.write( "16*4=64 \n" ); document.write( "64=64 \n" ); document.write( " \n" ); document.write( " |