blazenrais
19.11.2020 •
Mathematics
A plane travels 1400 miles to Munich and back. The trip there was with the wind. It took 14 hours. The trip back was into the wind. The trip back took 28 hours. Find the speed of the plane in still air and the speed of the wind?
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Ответ:
1/4x+5/2x-2=4-1/4x
3.2x+5.7=-2.5x
7.9x+x+4=1.1x-16
10.1x-1.6x+44=-7
Step-by-step explanation: