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OpenStudy (anonymous):
Coach Johnson is 10 years older than Tim. When Tim started football 3 years ago, Coach Johnson was twice his age. How old is Tim now? Numerical Answers Expected!
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OpenStudy (lollylau):
13
OpenStudy (anonymous):
Let Coach Johnson be C Time be T
OpenStudy (anonymous):
C = coach age T = Tim age C = T + 10 C-3 = 2(T-3), so C = 2T - 6 + 3 = 2T - 3 2T - 3 = T+ 10 T = 13, Tim's age now so coach is 23 three years ago they were 10 and 20
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