Question

Hector needs 84 feet of fencing to enclose his rectangular garden. The length of his garden is 12 feet less than twice its width. What is the width of his garden? 10 ft 16 ft 18 ft 24 ft.

Answer 1

Answer:

  (c)  18 ft

Step-by-step explanation:

If w is the width, then the length is (2w-12) and the perimeter is ...

  P = 2(L +W)

  84 = 2((2w -12) +w) = 2(3w -12)

  42 = 3w -12 . . . . . divide by 2

  54 = 3w . . . . . . . . add 12

  18 = w . . . . . . . . . divide by 3

The width of the garden is 18 feet.