what is the answer

Question

The width of a rectangle is 3 inches less than its length. The perimeter of therectangle is 94 inches. What is the length, in inches, of the rectangle?

a 23 1/2

b 25

c 31 1/3

d 44

e 91

Answer 1

Let L = length; W = width

Perimeter = 2L + 2W

so 2L + 2W = 94

we know the width is equal to L - 3, so substituting:

2L + 2(L - 3) = 94

2L + 2L - 6 = 94

4L - 100

L = 25

Answer 2

2(W+3 +W) = 94 inches

2W = 47-3 = 44

W = 22 inches

L=25 inches

2(22+25) = 2(47) = 94