SOLUTION: the average age of 3 children in the family is 9yrs. if the average age of their parent is 39 yrs,the average age of the whole family is...........
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Question 1031271: the average age of 3 children in the family is 9yrs. if the average age of their parent is 39 yrs,the average age of the whole family is........... Found 2 solutions by Alan3354, ikleyn:Answer by Alan3354(69443) (Show Source):
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the average age of 3 children in the family is 9yrs. if the average age of their parent is 39 yrs,the average age of the whole family is...........
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