A gardener is installing a fence around his garden. Let x represent the width of the garden, in feet. The perimeter of the garden is 8x+8. Which expression repr

Question

Which expression represents the length of the garden?

a. 2x+2

b. 3x+4

c. 6x+8

d. 8x+8-2x

Answer 1

P = 8x+8 is given

P = 2(L+W)

8x+8 = 2(L+W)

L+W = 4x+4

L = 4x+4-W, but W=x, also given, so

L = 4x + 4 -x

L = 3x +4   Correct answer is b.