SOLUTION: Mike is 18 years old and his grandmother is 66 years old. How many years ago was the grandmother 9 times as old as Mike?
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Question 665258: Mike is 18 years old and his grandmother is 66 years old. How many years ago was the grandmother 9 times as old as Mike?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
The difference in their ages will always be years
If Mike's age is and Grandmother's age is ,
then
Mike was 6 years old 12 years ago since
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