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slavikrds [6]
3 years ago
12

If Jackie were to paint her living room alone, it would take seven hours. Her sister Rachel could do the job in nine hours. How

many hours would it take them working together?
Mathematics
1 answer:
Ad libitum [116K]3 years ago
3 0

Answer:

9+8=16

Step-by-step explanation:

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We can use a ratio expression to find the answer to this problem.

Set up the ratio.
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Divide by 5.
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