Question 520153
The width of a rectangle is 4 more than the length,l. write an equation to describe the perimeter in term of w.

let p be the perimeter. we know that perimeter of a rectangle is p= 2(l+w)

the width is 4 more than the length, means w=4+l so, l=w-4

so p=2[(w-4)+w]
    =2(2w-4)
    = 4w -8


the answer is 4w-8