SOLUTION: The perimeter of a rectangle is 144m. The length is 3m more than twice the width. Find the dimensions.

Algebra ->  Rectangles -> SOLUTION: The perimeter of a rectangle is 144m. The length is 3m more than twice the width. Find the dimensions.       Log On


   

Question 321439: The perimeter of a rectangle is 144m. The length is 3m more than twice the width. Find the dimensions.
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
L=2W+3
2L+2W=P
2(2W+3)+2W=144
4W+6+2W=144
6W=144-6
6W=138
W=138/6
W=23 ANS. FOR THE WIDTH.
L=2*23+3=46+3=49 ANS. FOR THE LENGTH.
PROOF:
2*49+2*23=144
98+46=144
144=144