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Mathematics, 24.06.2019 16:10 Nalolivares
Person 1 can do a certain job in fifteen minutes, and person 2 can do the same job in thirty minutes. when completing the job together, which expression would be used to represent the amount of work done by person 1?
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Person 1 can do a certain job in fifteen minutes, and person 2 can do the same job in thirty minutes...
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