SOLUTION: 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
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Question 624629: 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 by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Let = the speed of the plane in still air in mi/hr
Let = distance between Orlando and Denver in miles
Orlando to Denver:
(1)
Denver to Orlando:
(2)
-------------------
(1)
(2)
By substitution,
The speed of the plane in still air is 440 mi/hr
check:
(2)
(2)
(2)
(2)
--------------
(1)
(1)
(1)
(1)
