The cover of a rectangular book has an area of 20 inches . If the books length is 3 times as long as it’s width explain how to find the exact perimeter of the book cover.

Question

asked May 3, 2021 35.4k views

1 Answer

Seandell · Answer 1 · 2021-05-10T03:58:06+0000

Answer:

Explanation:

If the books length (L) is three times as long as the width (W), the equation for area is this:

L · W = 20 inches,

3W · W = 20 inches - substituting L for 3W

So then the books perimeter is