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Mathematics, 25.04.2021 01:00 lailabirdiemae

If Judy completes a puzzle by herself, it takes her 3 hours. Working with Sal, it only takes them 2 hours. A table showing Rate in part per hour, Time in hours, and Part of Project Completed. The first row shows Judy, and has, question mark, 2, and StartFraction 2 Over 3 EndFraction. The second row shows Sal, and has, r, r, and 2 r.
What is the missing value from the table that represents Judy's rate?

r
3 – r
StartFraction 1 Over 3 EndFraction.
3

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Answers: 1

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If Judy completes a puzzle by herself, it takes her 3 hours. Working with Sal, it only takes them 2...
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