SOLUTION: A man is five times as old as his daughter. six years ago,the product of their age was 324.find their present age.
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Question 556152: A man is five times as old as his daughter. six years ago,the product of their age was 324.find their present age.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = man's age now
Let = Daughter's age now
given:
(1)
(2)
-----------------
Substitute (1) into (2)
(2)
(2)
(2)
Use quadratic formula
and,
(1)
(1)
(1)
The man is 60 and the daughter is 12
check:
(2)
(2)
(2)
(2)
OK
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