Answer:
- Air speed of planes is 522.5 mi/hr,
- Wind speed is 27.5 mi/hr.
----------------------------------
Let the air speed of the planes be s and the speed of the wind be w.
The two equations are:
Add up the two equations, it will eliminate w and we'll solve it for s:
- 550 + 495 = s + s
- 1045 = 2s
- s = 1045/2
- s = 522.5
The air speed of planes is 522.5 mi/hr.
Find the wind speed:
- 550 - w = 522.5
- w = 550 - 522.5
- w = 27.5
The wind speed is 27.5 mi/hr.
