SOLUTION: When Tim started football 3 years ago, his coach was twice his age. Currently, Tim's coach is 10 yrs older than Tim. How old is Tim now?
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Question 401183: When Tim started football 3 years ago, his coach was twice his age. Currently, Tim's coach is 10 yrs older than Tim. How old is Tim now?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = Tim's age now
Let = coaches age now
= Tim's age 3 years ago
= Coach's age 3 years ago
-------------------------
given:
(1)
(2)
--------------------
Substitute (2) into (1)
(1)
(1)
(1)
Tim is 13 yrs old now
check answer:
(1)
(2)
(2)
and
(1)
OK
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