Mathematics, 25.11.2020 14:00 dpierc16

John can fly his airplane 2,500 miles with a wind speed of 40 mph. In the same time he can travel 2,000 miles against the wind. If the speed of the wind is 40 mph, find the speed of his airplane

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John can fly his airplane 2,500 miles with a wind speed of 40 mph. In the same time he can travel 2,...

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