jessie31111 jessie31111

09-03-2022
Mathematics

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It takes 20 minutes for Janis to prepare lunch. When Kristen helps, it only takes 12 minutes. How many minutes would it take Kristen to prepare the same lunch if she worked alone

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eduardo240879 eduardo240879

09-03-2022

Answer:

30

Step-by-step explanation:

(Solution: 12/20 + 12/x = 1, x = 30 min)

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