Mathematics
Mathematics, 16.02.2020 00:20, Makiyahlfton2129

One plane at 520 feet is ascending at a rate of 40 feet per minute. While another plane at 3800 feet is descending at a rate of 120 feet per minute. How long will it take the two planes to be at the same altitude?

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One plane at 520 feet is ascending at a rate of 40 feet per minute. While another plane at 3800 feet...

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