SOLUTION: a rectangle is 12 meters longer than it is wide. its perimeter is 68 meters. find its length and width.

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Question 335445: a rectangle is 12 meters longer than it is wide. its perimeter is 68 meters. find its length and width.
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
L=W+12
2L+2W=68
2(W+12)+2W=68
2W+24+2W=68
4W=68-24
4W=44
W=44/4
W=11 ANS. FOR THE WIDTH.
L=11+12=23 ANS. FOR THE LENGTH.
PROOF:
2*11+2*23=68
22+46=68
68=68