let L the length and W is the width we have L=2W-5 the perimeter is 2(L+W) --->>> 2(2W-5+W)
---->>>> 2(3W-5) ---->>> 6W-10) = 230 ----->>>>> 6W = 230+10 6W=240 W = 240/6 = 40 yards
and since L=2W-5 we have L = 2*40-5 = 80-5 = 75 so we have W=40 yards and L = 75 yards
check; 2(40+75) = 2 x 115 = 230 yards