The length of a rectangle is five times its width. If the perimeter of the rectangle is 84 yd, find its length and width.

Width is 7 and length is 35
First you set your equation to equal 84 since that’s the total for perimeter is 84. Then you would let the length be 5x since the length is five times the width, that would leave your width to be x. Then you would do x+x+5x+5x=84 then combine like terms. So then it would be 12x=84 divide by 12 which equals x=7 then you plug that in for x which would create the answers of 7 and 35.