document.write( "Question 437715: A rectangle has a perimeter of 36inches the width is four inches bigger then length. what's the length ??? someone anyone please help and thank you!!! \n" ); document.write( "
Algebra.Com's Answer #302789 by sudheerb(5)![]() ![]() ![]() You can put this solution on YOUR website! Given perimeter of rectangle P = 36 inches \n" ); document.write( "Let L and W be the length and width of the rectangle. \n" ); document.write( "Also given that width is four inches bigger than length. \n" ); document.write( "Therefore W = 4 + L \n" ); document.write( "We know that formula for perimeter of rectangle is P = 2(L + W). \n" ); document.write( " => 2(L + W) = P \n" ); document.write( " => 2[L + (4 + L)] = 36 \n" ); document.write( " => 2[L + 4 + L] = 36 \n" ); document.write( " Divide both sides by 2 \n" ); document.write( " => (4 + 2L) = 18 \n" ); document.write( " Subtract 4 from both sides of equation \n" ); document.write( " => 4 + 2L - 4 = 18 - 4 \n" ); document.write( " => 2L = 14 \n" ); document.write( " Divide both sides by 2 \n" ); document.write( " 2L/2 = 14/2 \n" ); document.write( " L = 7 \n" ); document.write( "Therefore length of rectangle is 7 inches. \n" ); document.write( " |