SOLUTION: The width of a rectangle is x inches. The length of that rectangle is 4 inches less than 3 times the width. If the perimeter is 40 inches, what is the length and width of this rect

Algebra ->  Complex Numbers Imaginary Numbers Solvers and Lesson -> SOLUTION: The width of a rectangle is x inches. The length of that rectangle is 4 inches less than 3 times the width. If the perimeter is 40 inches, what is the length and width of this rect      Log On


   

Question 609032: The width of a rectangle is x inches. The length of that rectangle is 4 inches less than 3 times the width. If the perimeter is 40 inches, what is the length and width of this rectangle?
Answer by flame8855(424) About Me  (Show Source):
You can put this solution on YOUR website!
l = 3w -4
2(w+l) = 40
w+3w-4= 20
4w=24
w=6
l=14