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document.write( "the perimeter of a rectangle is 36 m. if the length is three times the width, what is the width? \n" );
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Algebra.Com's Answer #422371 by checkley79(3341)![]() ![]() ![]() You can put this solution on YOUR website! P=2L+2W \n" ); document.write( "L=3W \n" ); document.write( "36=2*3W+2W \n" ); document.write( "36=6W+2W \n" ); document.write( "36=8W \n" ); document.write( "W=36/8 \n" ); document.write( "W=4.5 ANS. FOR THE WIDTH. \n" ); document.write( "L=3*2.5=7.5 \n" ); document.write( "PROOF: \n" ); document.write( "36=2*3*4.5+2*4.5 \n" ); document.write( "36=6*4.5+9 \n" ); document.write( "36=27+9 \n" ); document.write( "36=36 \n" ); document.write( " |