SOLUTION: Mary's age is 5 times Jose's age. The sum of their ages is 18. How old is each?

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Question 1015574: Mary's age is 5 times Jose's age. The sum of their ages is 18. How old is each?
Answer by ikleyn(52787) About Me  (Show Source):
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Mary's age is 5 times Jose's age. The sum of their ages is 18. How old is each?
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Mary is 15, Joe is 3 ears old. 

Your equation is 

5J + J = 18,

or

6J = 18.

Surely, J = 3.