The length of a rectangle is four times its width.
if the perimeter of the rectangle is 60 ft, find its area.

area=144 ft²

Step-by-step explanation:

width=x

length=4x

perimeter=2(4x+x)

    60=2(5x)

60/2=5x

30=5x

x=30/5

 =6

width=6 ft

length= 4(6)

          =24 ft

area= length * width

        =6*24

        =144 ft²

really really sorry if i'm

-12 -5(x + 4) = 3x

-12 - 5x - 20 = 3x

-12 - 20 - 5x = 3x

-32 - 5x = 3x

    + 5x   + 5x

-32 = 8x

8         8

- 4= x