Question

The perimeter of a rectangular window is 104 ft. The length is three times the width. Write a equation and solve for the width.

Answer 1

L2 + W2 = P

L = 3W

2(3W) + 2W = 104

6W + 2W = 104

8W = 104

W = 13

Explanation:

perimeter is 2 times length plus two times width.

add these togethter to get 104 (the given number)

then create an equation to find length based on the given number

simplify and find w.

Answer 2

Answer: width = 13 ft

Explanation:

Perimeter (P) = 2 × Length (L) + 2 × width (w)

Given: P = 104, L = 3w

P = 2L + 2w

104 = 2(3w) + 2w

104 = 6w + 2w

104 = 8w

13 = w