document.write( "Question 956419: The perimeter of a rectangle is 126 m. The length is 3 m more than twice the width. Find the dimensions. I struggled with trying to figure this question out. \n" ); document.write( "
Algebra.Com's Answer #584341 by macston(5194)![]() ![]() You can put this solution on YOUR website! W=width: L=length=2W+3m; P=perimeter \n" ); document.write( "P=2(L+W) Substitute for L. \n" ); document.write( "126m=2((2W+3m)+W) Divide each side by 2. \n" ); document.write( "63m=3W+3m Subtract 3m from each side. \n" ); document.write( "60m=3W Divide each side by 3. \n" ); document.write( "20m=W ANSWER 1: The width is 20 meters. \n" ); document.write( "L=2W+3m=2(20m)+3m=43m ANSWER 2: The length is 43 meters. \n" ); document.write( "CHECK: \n" ); document.write( "P=2(L+W) \n" ); document.write( "126m=2(43m+20m) \n" ); document.write( "126m=2(63m) \n" ); document.write( "126m=126m \n" ); document.write( " |