SOLUTION: the length of a rectangle is 6 meters more than 3 times it width. If the perimeter of the rectangle is 84 meters find its dimensions
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Question 136120: the length of a rectangle is 6 meters more than 3 times it width. If the perimeter of the rectangle is 84 meters find its dimensions Answer by checkley77(12844) (Show Source):
You can put this solution on YOUR website! L=3W+6 IS THE LENGTH
W=WIDTH
2L+2W=84
2(3W+6)+2W=84
6W+12+2W=84
8W+12=84
8W=84-12
8W=72
W=72/8
W=9 ANSWER FOR THE WIDTH
L=3*9+6
L=27+6
L=33 ANSWER
PROOF
2*9+2*33=84
18+66=84
84=84
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