SOLUTION: Susan is twice as old as Mary. In five years, their ages will total 49. How old is each today?

Question 952495: Susan is twice as old as Mary. In five years, their ages will total 49. How old is each today?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Susan is twice as old as Mary. In five years, their ages will total 49. How old is each today?
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Equation:
s = 2m
s+5 + m+5 = 49
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s = 2m
s + m = 39
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Substitute for "s" and solve for "m"::
2m + m = 39
3m = 39
m = 13 yrs (Mary's age now)
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Solve for "s"::
s = 2m
s = 2(13)
s = 26 yrs (Susan's age now)
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Cheers,
Stan H.
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