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.
\n" ); document.write( "Thanks,
\n" ); document.write( "Deana
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Algebra.Com's Answer #173082 by checkley77(12844)\"\" \"About 
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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
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