Mathematics, 08.10.2019 22:30 ZachDom4784
Matt and anna killian are frequent fliers on fast-n-go airlines. they often fly between two cities that are a distance of 1980 miles apart. on one particular trip, they flew into the wind and the trip took 5.5 hours. the return trip with the wind behind them, only took about 4.5 hours. find the speed of the wind and the speed of the plane in still air.
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