Question 17720: A rectangular field is three times as long as it is wide. if the perimeter of the field is 400 yards, what are the field`s dimentions? Answer by xcentaur(357) (Show Source): You can put this solution on YOUR website! let length be x and width be y
then x=3y
2(x+y)=400
x+y=200
3y+y=200
4y=200
y=50
x=3*50=150