SOLUTION: three times the age of felicia is four more than the age of isaac. in three years,the sum of their ages will be 30 years.find their present ages.

Question 1031635: three times the age of felicia is four more than the age of isaac. in three years,the sum of their ages will be 30 years.find their present ages.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
three times the age of felicia is four more than the age of isaac. in three years,the sum of their ages will be 30 years.find their present ages.
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Equations:
3f = I + 4
f+3 + I+3 = 30
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Substitute for "I" and solve for "f"::
f + 3 + 3f-4 + 3 = 30
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4f = 30-2
f = 7 yrs (Felicia's age now)
I = 3f-4 = 17 yrs (Isaac's age now)
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Cheers,
Stan H.
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