An airplane travels 6200 kilometers against the wind in 8 hours and 6840 kilometers with the wind in the same amount of time. Wh
at is the rate of the plane in
still air and what is the rate of the wind?
1 answer:
Answer:
still air = 815, wind = 40
Step-by-step explanation:
x+y=against
x-y=with
8(x+y)=6200
8(x-y)=6840
Divide 8.
x-y=775
x+y=855
Subtract. 2 from 1
2y=80
y=40
x=815
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