Question 440232
Tom is three times as old as Mark. Twice Mark's age plus Tom's age is 90. How old is each person
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Equations:
t = 3m
2m + t = 90
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Substitute for "t" and solve for "m":
2m + 3m = 90
5m = 90
m  18 (Mark's age now)
t = 3m = 54 (Tom's age now)
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Cheers,
Stan H.
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