SOLUTION: Mary's mother is 4 times the age of Mary. The difference of the ages are 28 how old are they?

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Question 716765: Mary's mother is 4 times the age of Mary. The difference of the ages are 28 how old are they?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Mary's mother is 4 times the age of Mary. The difference of the ages are 28 how old are they?
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m = 4M
m - M = 28
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Substitute for "m" and solve for "M":
4M-M = 28
3M = 28
M = 9 1/3 years (Mary's age now)
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Solve for "m":
m = 4M
m = 4(28/3) = 37 1/3 (mother's age now)
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Cheers,
Stan H.
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