I'm in Eighth grade, and I just need help to understand this question. My math teacher is sick and out.

Question

A rectangular athletic field is twice as long as it is wide. If the perimeter of the athletic field is

9090

​yards, what are its​ dimensions?

What is the​ width?

What is the length?

Answer 1

Let L = length

W = width

Then, L = 2W and Perimeter = 2L + 2W = 2(2W) + 2W = 6W = 9090

So,

W = 9090/6 = 1515

& L = 2W = 3030