document.write( "Question 194162This question is from textbook Find Algebra and Trigonometry: Structure and Method (2nd)
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document.write( ": 1. Find the demensions of a rectangle whose perimeter is 50m and whose area is 144 m2. \n" );
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Algebra.Com's Answer #145755 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! LW=144 OR L=144/W \n" ); document.write( "2L+2W=50 \n" ); document.write( "2(144/W)+2W=50 \n" ); document.write( "288/W+2W=50 \n" ); document.write( "(288+2W*W)/W=50 \n" ); document.write( "(288+2W^2)/W=50 \n" ); document.write( "2W^2+288=50W \n" ); document.write( "2W^2-50W+288=0 \n" ); document.write( "2(W^2-25W+144)=0 \n" ); document.write( "2(W-16)(W-9)=0 \n" ); document.write( "W-16=0 \n" ); document.write( "W=16 ANS. L=9 ANS \n" ); document.write( "W-9=0 \n" ); document.write( "W=9 ANS. L=16 ANS. \n" ); document.write( "PROOF: \n" ); document.write( "2*16+2*9=50 \n" ); document.write( "32+18=50 \n" ); document.write( "50=50\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |