Question

Jason has 144 feet of material to build a fence around a rectangular garden on his property. If the width of the fence must be 9 feet, what is the length of the fence in yards if he uses all 144 feet of material?

126 yards
63 yards
42 yards
21 yards

Answer 1

Option D is the correct answer.

Explanation:

Jason has 144 feet of material to build a fence around a rectangular garden on his property.

Total material with Jason = 144 feet

Perimeter of rectangle = 144 feet

Perimeter of rectangle = 2 x ( length + width )

2 x ( length + width ) = 144

length + width = 72

Given that width is 9 feet

Substituting

length + 9 = 72

length = 63 feet

1 yard = 3 feet

length = 63 feet = 21 yards

Option D is the correct answer.