The length of a rectangle is 4 times the width. If the perimeter is to be greater than or equal to 120 meters. What are the possible values for the width?

Question

please help me with this problem, it seems that my teacher didnt add in a similar problem to do this. If you can please explain it with detail.

Answer 1

L=4W

2(L+W) > 120

divide by 2

L+W > 60

substitute 4W for L

4W + W > 60

add the left side to get 5W

divide by 5

W > 12

The width is at least 12 meters

length is at least 48