SOLUTION: The length of a rectangle is 6 feet more than three times the width. The perimeter is 36 feet. Find the length & width. Thank you.

Algebra ->  Linear-equations -> SOLUTION: The length of a rectangle is 6 feet more than three times the width. The perimeter is 36 feet. Find the length & width. Thank you.      Log On


   

Question 272096: The length of a rectangle is 6 feet more than three times the width. The perimeter is 36 feet. Find the length & width.
Thank you.
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
L=3W+6
2L+2W=36
2(3W+6)+2W=36
6W+12+2W=36
8W=36-12
8W=24
W=24/8
W=3 FT. FOR THE WIDTH
L=3*3+6
L=9+6=30 ANS. FOR THE LENGTH.
PROOF:
2*15+2*3=36
30+6=36
36=36