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OpenStudy (anonymous):
James can tar a roof in 12 hours. natalia can tar the same roof in 9 hours. if they worked together, how long would it take them? a) 5.14 b) 4.98 c) 4.37 d) 4.39 Thanks!
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OpenStudy (anonymous):
Together: 1/T = 1/12 + 1/9
OpenStudy (anonymous):
im confused
OpenStudy (anonymous):
OH wait never mind i get it!
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