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document.write( "The floor of a room is a rectangle.
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document.write( "It has a perimeter of 22 meters and an area of 24 square meters. \r
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document.write( "What are the length and width of the room? \n" );
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Algebra.Com's Answer #443099 by checkley79(3341)![]() ![]() ![]() You can put this solution on YOUR website! P=2L+2W \n" ); document.write( "A=LW \n" ); document.write( "24=LW \n" ); document.write( "L=24/W \n" ); document.write( "22=2(24/W)+2W \n" ); document.write( "22=48/W+2W \n" ); document.write( "22=(48+2W*W)/W \n" ); document.write( "22=(48+2W^2)/W CROSS MULTIPLY. \n" ); document.write( "48+2W^2=22W \n" ); document.write( "2W^2-22W+48=0 \n" ); document.write( "2(W^2-11W+24)=0 \n" ); document.write( "2(W-3)(W-8)=0 \n" ); document.write( "W-3=0 \n" ); document.write( "W=3 ANS. \n" ); document.write( "W-8=0 \n" ); document.write( "W=8 ANS. \n" ); document.write( "L=24/3=8 ANS. \n" ); document.write( "L=24/8=3 ANS. \n" ); document.write( "PROOF: \n" ); document.write( "22=(48/8)+2*8 \n" ); document.write( "22=6+16 \n" ); document.write( "22=22 \n" ); document.write( "22=(48/3+2*3 \n" ); document.write( "22=16+6 \n" ); document.write( "22=22 \n" ); document.write( " \n" ); document.write( " |