SOLUTION: A plane traveling from Phoenix to San Francisco with a tailwind of 35 miles per hour takes 2.5 hours. Returning with the headwind, it takes the same plane 2 hours and 45 minutes. W
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Question 370178: A plane traveling from Phoenix to San Francisco with a tailwind of 35 miles per hour takes 2.5 hours. Returning with the headwind, it takes the same plane 2 hours and 45 minutes. What is the average speed of the plane in calm conditions?
Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
d = r * t ___ the distances are the same (there and back)
(p + 35)(2.5) = (p - 35)(2.75)
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