length width

Question

The perimeter of the rectangle Plainfield is 346 yards. The length of the field is 7 yards less than double the width. what are the dimensions of the playing field?

Answer 1

P = 346 yards

 

L = 2W - 7

 

P = 2(L + W)

 

346 = 2[(2W - 7) + W]

 

346 = 2[3W - 7]

 

W = (346/2 + 7) / 3 = 60 yards

 

L = 2(60) - 7 yards = 113 yards