SOLUTION: the length of a rectangle is three times the width. the perimeter is 49 units. find the length.

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Question 315220: the length of a rectangle is three times the width. the perimeter is 49 units. find the length.
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
L=3W
P=2L+2W
49=2*3W+2W
49=6W+2W
8W=49
W=49/8
W=6.125 ANS. FOR THE WIDTH.
L=3*6.125=18.375 ANS. FOR THE LENGTH.
PROOF:
49=2*18.375+2*6.125
49=36.75+12.25
49=49