Mathematics, 23.04.2020 16:18 bob5266
Professor J can grade an entire section of essays in 3 hours. His teaching assistant, M, can grade the same amount of essays in 5 hours. How long would it take them to grade the essays if they work together?
(15points) plz help!
Answers: 3
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Professor J can grade an entire section of essays in 3 hours. His teaching assistant, M, can grade t...
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