SOLUTION: Two friends are cleaning a pool. Roger can clean it in 6 hours working alone. If Latonya works alone, it will take her 5 hours. How long will it take them working together? Rou
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Question 1015603: Two friends are cleaning a pool. Roger can clean it in 6 hours working alone. If Latonya works alone, it will take her 5 hours. How long will it take them working together? Round to the nearest tenth.
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1) In 30 hours, Roger cleans 5 pools and Latonya, 6.
11 pools cleaned in 30hrs, one pool cleaned in 30/11 = 2.7 hours
2) Roger cleans 1/6 pool per hour, Latoya 1/5 pool per hour. Together, 11/30pools per hour. To do one full pool, the same 30/11 results in 2.7 hours.
You can put this solution on YOUR website! .
Two friends are cleaning a pool. Roger can clean it in 6 hours working alone. If Latonya works alone, it will take her 5 hours.
How long will it take them working together? Round to the nearest tenth.
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