Mathematics, 07.07.2019 13:50 gerardogonzale362

Rosa can paint a room in 12 hours. hanna can paint the same room in 9 hours. how long does it take for both rosa and hanna to paint the room if they are working together?

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Rosa can paint a room in 12 hours. hanna can paint the same room in 9 hours. how long does it take f...

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