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Nastasia [14]
3 years ago
5

An airplane maintaining a constant airspeed takes as long to travel 925 mi with wind as it does to travel 775 mi against the win

d. If the wind is blowing at 15 mph, what is the rate of the plane in still air
Mathematics
1 answer:
kow [346]3 years ago
5 0

9514 1404 393

Answer:

  170 mph

Step-by-step explanation:

The speed of the airplane can be represented by s. The travel time will be ...

  time = distance/speed

  925/(s +15) = 775/(s -15)

  925(s -15) = 775(s +15)

  150s = 25500 . . . . . . . . . add 13875-775s

  s = 170

The rate of the plane in still air is 170 mph.

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