SOLUTION: The length of a rectangle is four times the width. The area is 144 in.^2. Find the length and the width. Show your work.

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equation Customizable Word Problems -> SOLUTION: The length of a rectangle is four times the width. The area is 144 in.^2. Find the length and the width. Show your work.      Log On


   

Question 116449:
The length of a rectangle is four times the width. The area is 144 in.^2. Find the length and the width. Show your work.
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
L*W=144
L=4W
4W*W=144
4W^2=144
W^2=144/4
W^2=36
W=SQRT36
W=6 ANSWER FOR THE WIDTH.
L=4*6
L=24 ANSWER FOR THE LENGTH.
PROOF
6*24=144
144=144