Question

The length of a sandbox is three feet longer than its width. Write the expression that would represent the perimeter of the sandbox.

Answer 1

4w + 6

Explanation:

Let width = w

Length = w + 3

Perimeter = 2*length + 2* width

= 2(w +3) + 2w {Use distributive property}

= 2w + 2*3 + 2w

= 2w + 6 + 2w {Combine like terms}

= 4w + 6