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Mathematics 9 Online
OpenStudy (anonymous):

John can paint a fence in 9 hours. Tim can paint the same fence in 11 hours. How much time would the two working together need to paint the same fence? (Round your answer to the nearest hundredth.) @ashley_f97 @mathstudent55

OpenStudy (cwrw238):

shortie - use the same method we used in the previous problem (jack and the trainee)

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