SOLUTION: A plane flies 720 mi. against a steady 30-mi/h headwind and then returns to the same point with the wind. If the entire trip takes 10 h what is the plane's speed in still air?
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-> SOLUTION: A plane flies 720 mi. against a steady 30-mi/h headwind and then returns to the same point with the wind. If the entire trip takes 10 h what is the plane's speed in still air?
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Question 42802: A plane flies 720 mi. against a steady 30-mi/h headwind and then returns to the same point with the wind. If the entire trip takes 10 h what is the plane's speed in still air? Answer by fractalier(6550) (Show Source):
You can put this solution on YOUR website! Posted this complete solution a couple of days ago...the plane in still air travels at 150 mph...thus 4 hours at 180 and 6 hours at 120...
