The length of a rectangle is 2/5 its width and the perimeter is 280 inches, what are the length and width of the rectangle?

2l + 2w = p

l = 2/5w

2 (2/5w) + 2w = 280

4/5w + 2w = 280

2 4/5w = 280

w = 100

l = 2/5 (100)

l = 40

The answer is 350

Step-by-step explanation:

First, you turn 2/5 is 0.4

Second, You then divide 280 by 0.4 which is 700

lastly, You have to divide 700 by 2 because there are 2 sides

And you answer is 350.