document.write( "Question 285342: The formula for the perimeter of a rectangle is P=2L+2w, where L is the length and w is the width. A rectangle has a perimeter of 24 inches. Find its dimensions if its length is 3 inches greater than its width. \n" ); document.write( "
Algebra.Com's Answer #206844 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! L=W+3 \n" ); document.write( "PERIMETER=2L+2W \n" ); document.write( "24=2(W+3)+2W \n" ); document.write( "24=2W+6+2W \n" ); document.write( "24=4W+6 \n" ); document.write( "4W=24-6 \n" ); document.write( "4W=18 \n" ); document.write( "W=18/4 \n" ); document.write( "W=4.5 ANS. FOR THE WIDTH. \n" ); document.write( "L=4.5+3=7.5 ANS. FOR THE LENGTH. \n" ); document.write( "PROOF: \n" ); document.write( "24=2*7.5+2*4.5 \n" ); document.write( "24=15+9 \n" ); document.write( "24=24 \n" ); document.write( " |