SOLUTION: The length of a rectangle is three times the width. The area is 108in^2. Find the length and the width.

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: The length of a rectangle is three times the width. The area is 108in^2. Find the length and the width.      Log On


   

Question 168673: The length of a rectangle is three times the width. The area is 108in^2. Find the length and the width.
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
L=3W
LW=108
3W*W=108
3W^2=108
W^2=108/3
W^2=36
W=SQRT36
W=6 IN. FOR THE WIDTH.
L=3*6=18 IN.FOR THE LENGTH.