SOLUTION: Eleven years from now, Peter's age will be half the square of the age he was 13 years ago. Calculate the current age of Peter.
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Question 1079108: Eleven years from now, Peter's age will be half the square of the age he was 13 years ago. Calculate the current age of Peter.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = Peter's current age
given:
Use quadratic equation
----------------
Peter is 21 now
------------------
check:
OK
I'll try the negative root of also
-----------------
I don't think this is a valid solution since his
age 13 years ago ends up being 6 years
before he was born. I'll stick with
the 1st answer.
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