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Mathematics, 18.02.2021 20:40 reneewilliams20

2. A coal miner is 140 feet beneath the surface of the earth and ascending at an average rate of 2.1 feet per second. His replacement begins at the surface and
descends at an average rate of 1.8 feet per second. About how long will it be until
the workers are at the height?

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Answers: 2

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