Problema Solution
1.A plane travels from Orlando to Denver and back again. On the five-hour trip from Orlando to Denver, the plane has a tailwind of 40 miles per hour. On the return trip from Denver to Orlando, the plane faces a headwind of 40 miles per hour. This trip takes six hours. What is the speed of the airplane in still air?
Answer provided by our tutors
Solution:
d1 = d2
5(s+40) = 6(s-40)
5s + 200 = 6s - 240
s = 440 mph