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Mathematics 17 Online
OpenStudy (anonymous):

Please Help!!! Two friends are painting a living room. Ken can paint it in 6 hours working alone. If Barbie works alone, it will take her 8 hours. How long will it take working together? Round to the nearest tenth of an hour. A. 3.0 hours B. 3.4 hours C. 4.0 hours D. 4.6 hours

OpenStudy (anonymous):

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