document.write( "Question 288001: Suppose that the width of a rectangle is 5 inches shorter than the length and that the perimeter of the rectangle is 50 inches. Set up an equation for the perimeter involving only L, the length in the rectangle.\r
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document.write( "Also solve this equation algebraically to find the length of the rectangle. Find the width as well. \n" );
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Algebra.Com's Answer #208705 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! W=L-5 \n" ); document.write( "P=2L+2W \n" ); document.write( "50=2L+2(L-5) \n" ); document.write( "50=2L+2L-10 \n" ); document.write( "4L=50+10 \n" ); document.write( "4L=60 \n" ); document.write( "L=60/4 \n" ); document.write( "L=15 ANS. \n" ); document.write( "W=15-5=10 ANS. \n" ); document.write( "PROOF: \n" ); document.write( "50=2*15+2+10 \n" ); document.write( "50=30+20 \n" ); document.write( "50=50 \n" ); document.write( " \n" ); document.write( " |