The length of a rectangle is 7cm longer than its widthIf the perimeter of the rectangle is 142cm what are the dimensions of the rectangle?

perimeter = 2(length X width) = 2(l x w) = 2(w+7+w) - 2(2w+7)=142 2w+7 = 71; 2w=64; w = 32 and l = w+7 = 39 Check: perimeter = 2(32+37) = 142