SOLUTION: Nica is five times as his sister. The sum of their ages is 12.How old is Nica's sister?
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Question 1097480: Nica is five times as his sister. The sum of their ages is 12.How old is Nica's sister?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Nica is five times as his sister. The sum of their ages is 12.How old is Nica's sister?
Equations:
n = 5s
n+s = 12
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Substitute for "n" and solve for "s"::
5s+s = 12
6s = 12
s = 2 yrs (sister's age now)
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Cheers,
Stan H.
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