Question 745820
A farmer has 42 feet of fence with which to make a corral. If he arranges it into a rectangle that is twice as long as it is wide, what are the dimensions?

Perimeter = 42 ft.
twice as long as it is wide: L=2W
P = 2(L + W) = 2(2W + W) = 6W
42 = 6W
W = 7 ft. and L = 14 ft.