document.write( "Question 294525: The length of a rectangle is 4 centimeters longer than its width. If the perimeter is 28 centimeters, find the length and the width. \n" ); document.write( "
Algebra.Com's Answer #212518 by dabanfield(803)![]() ![]() ![]() You can put this solution on YOUR website! The length of a rectangle is 4 centimeters longer than its width. If the perimeter is 28 centimeters, find the length and the width.\r \n" ); document.write( "\n" ); document.write( "Let l be the be the length and w the width of the rectangle. Then we have:\r \n" ); document.write( "\n" ); document.write( "1.) l = w + 4 \n" ); document.write( "2.) 2*l + 2*w = 28\r \n" ); document.write( "\n" ); document.write( "Substituting w+4 for l in equation 2.) we have: \r \n" ); document.write( "\n" ); document.write( "2*(w+4) + 2*w = 28 \n" ); document.write( "2*w + 8 + 2*w = 28 \n" ); document.write( "4*w = 28-8 \n" ); document.write( "4*w = 20 \n" ); document.write( "w = 5\r \n" ); document.write( "\n" ); document.write( "From 1.) we have l = w + 4 = 5+4 = 9 \n" ); document.write( " |