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Mathematics, 02.07.2019 19:00 nina288
Vera is using her phone. its battery life is down to \dfrac25 5 2 start fraction, 2, divided by, 5, end fraction , and it drains another \dfrac19 9 1 start fraction, 1, divided by, 9, end fraction every hour. how many hours will her battery last?
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Vera is using her phone. its battery life is down to \dfrac25 5 2 start fraction, 2, divided by, 5...
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