Question 1041622: Sally is 54 years old her mother is 80 years old. How many years ago was Sally's mother three times her age? Found 2 solutions by solver91311, stanbon:Answer by solver91311(24713) (Show Source):
Let represent the number of years ago when Sally's mother was three times Sally's age. Since her mother is 80, she must have been years old then and Sally must have been years old then, and at that time:
Solve for
John
My calculator said it, I believe it, that settles it
You can put this solution on YOUR website! Sally is 54 years old her mother is 80 years old. How many years ago was Sally's mother three times her age?
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s = 54
m = 80
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m-x = 3(s-x)
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80-x = 3*54 - 3x
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2x = 162-80
x = 41 years
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Cheers,
Stan H.
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