SOLUTION: The average weight of three dogs is 55 pounds, and the average weight of five cats is 9 pounds. What is the average weight, in pounds, of all eight animals?

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Question 935562: The average weight of three dogs is 55 pounds, and the average weight of five cats is 9 pounds. What is the average weight, in pounds, of all eight animals?
Answer by TimothyLamb(4379) About Me  (Show Source):
You can put this solution on YOUR website!
x = sum of weights of the three dogs
y = sum of weights of the five cats
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x = 55*3
y = 9*5
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answer:
(x + y)/8 = (55*3 + 9*5)/8
(x + y)/8 = 26.25 pounds
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