SOLUTION: THe length of a rectangular pool is 6 meters less than twice it's width. If the pool's perimeter is 126 meters, what are its dimensions? I came up with the equation 6L-2w= 126.

Algebra ->  Rectangles -> SOLUTION: THe length of a rectangular pool is 6 meters less than twice it's width. If the pool's perimeter is 126 meters, what are its dimensions? I came up with the equation 6L-2w= 126.      Log On


   

Question 217535: THe length of a rectangular pool is 6 meters less than twice it's width. If the pool's perimeter is 126 meters, what are its dimensions?
I came up with the equation 6L-2w= 126. I just don't know where to go from there.
Thank you
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
L=2W
2L+2W=126
2(2W)+2W=126
4W+2W=126
6W=126
W=21 METERS IS THE WIDTH.
L=2*21=42 METERS IS THE LENGTH.
PROOF:
2*42+2*21=126
84+42=126
126=126