Mathematics, 07.09.2021 17:40 awesomegrill
An aircraft travels with the wind for 120 miles in 0.75 of an hour. The return trip is flown against the wind and takes exactly 1 hour. Which system of linear equations represents x, the speed of the plane in miles per hour, and y, the speed of the wind in miles per hour? Recall the formula d = rt. 0.75(x + y) = 120 x β y = 120 0.75(x β y)= 120 x + y = 120 120(x + y) = 0.75 120(x β y) = 1 120(x β y) = 0.75 120(x + y) = 1
Answers: 3
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