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 − y = 120

0.75(x − y)= 120
x + y = 120

120(x + y) = 0.75
120(x − y) = 1

120(x − y) = 0.75
120(x + y) = 1

Question

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 − y = 120

0.75(x − y)= 120 
x + y = 120

120(x + y) = 0.75 
 120(x − y) = 1

120(x − y) = 0.75 
 120(x + y) = 1

the_mobster · Answer

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paki · Answer

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