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sladkih [1.3K]
2 years ago
7

If, on their own, it takes 6 hours for Person A to complete a task and 9 hours for Person B to complete the same task, then how

many hours would it take if they worked together? Estimate your answer to 4 places after the decimal, if necessary.
Mathematics
1 answer:
Kisachek [45]2 years ago
6 0

Answer:

Step-by-step explanation:

A does 1/6 of the task per hour.

B does 1/9 of the task per hour.

Together, they do 1/6+1/9 = 5/18 of the task per hour, finishing in 18/5 hours.

18/5 = 3.6 hours

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