document.write( "Question 116872: The Perimeter of a rectangle is 42 cm. One side is 9 cm longer than the other side. Find the lengths of the sides. \n" ); document.write( "
Algebra.Com's Answer #84968 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! The Perimeter of a rectangle is 42 cm. One side is 9 cm longer than the other side. Find the lengths of the sides. \n" ); document.write( "-------------- \n" ); document.write( "Let one of the sides by \"x\" cm long \n" ); document.write( "Let the longer side be \"x+9\" cm long \n" ); document.write( "-------------- \n" ); document.write( "Perimeter = 2(length + width) \n" ); document.write( "42 = 2 (x + x+9) \n" ); document.write( "21 = 2x+9 \n" ); document.write( "2x = 12 \n" ); document.write( "x = 6 cm \n" ); document.write( "x+9 = 15 cm \n" ); document.write( "=============== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |