Question

The length, L, of a rectangle is 4 times its width, W. The perimeter of the rectangle is greater than 60

cm. Which inequality expresses all the possible lengths of the rectangle in centimeters? (Hint: P =
21+2w)

Answer 1

w> 6

Explanation:

Let w= the width

Let 4w = length

So then your equation becomes

2(w) + 2(4w) >60

Distribute

2w+8w > 60

Combine like terms

10w > 60

Divide by 10

w > 6