Question

Can someone please answer this for me?

A length of a rectangle is four times the width.

What is the perimeter of a rectangle with width 13 inches?

A.
52 inches

B.
60 inches

C.
65 inches

D.
130 inches

Answer 1

Let L and W stand for length and width respectively. We're told that the length of a rectangle is four times the width; as an equation, this would be L = 4W. Now recall that the perimeter of a rectangle is P=2L+2W. Thus, in terms of width only, we see that perimeter is P=2(4W)+2W = 10W. Now what do you get for P when W=13?

Does this make sense? :-)

Answer 2

so is it A?

Answer 3

What is 13*10? :)

Answer 4

130 so its D

Answer 5

Correct; but do you see why we get that for the answer based off the explanation I gave earlier?

Answer 6

yea kinda and thanks