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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Uvylight asked Jun 3, 2023

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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

Mathematics
high-school

Uvylight asked Jun 3, 2023

by Uvylight

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18 votes

Answer:

Explanation:

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

Jkeeler answered Jun 9, 2023

by Jkeeler

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