Mathematics, 16.06.2020 09:57 Ruijinzhang3142
Andrea can clean a house 4 times as fast as Denise. When they work together, Andrea and Denise can clean a large house in 8 hours. How many hours would it take Denise to clean the house by herself?
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Andrea can clean a house 4 times as fast as Denise. When they work together, Andrea and Denise can c...
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