Question

The length of a rectangle is 4 less than three times its width. The perimeter is 72 feet. What are the dimensions of the rectangle?

Answer 1

Say width equals x.
Length = 3x - 4
Solve for x: 72 = 2(3x - 4) + 2x
72=6x-8+2x
80=8x
X=10
So width = 10
Length= 3(10) - 4 = 26