SOLUTION: Julie is 1/3 as old as her father and in 10 years she will be twice as now. What is her fathers age now

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Question 881997: Julie is 1/3 as old as her father and in 10 years she will be twice as now. What is her fathers age now
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +j+ = Julie's age now
Let +f+ = father's age now
+j+%2B+10+ = Julie's age in 10 years
--------------------------------
given:
(1) +j+=+%281%2F3%29%2Af+
(2) +j+%2B+10+=+2j+
------------------
(2) +2j+-+j+=+10+
+j+=+10+
and
(1) +10+=+%281%2F3%29%2Af+
(1) +f+=+30+
---------------
Her father is 30 now