SOLUTION: Two cities are 3500 miles apart. A plane leaves one of​ them, traveling towards the other at an average speed of 320 miles per hour. At the same time a plane leaves t

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Question 1067645: Two cities are 3500

miles apart. A plane leaves one of​ them, traveling towards the other at an average speed of 320

miles per hour. At the same time a plane leaves the​ other, traveling towards the​ first, at an average speed of 380

miles per hour. How long will it take them to​ meet?
Answer by htmentor(1343) About Me  (Show Source):
You can put this solution on YOUR website!
Since they are travelling toward each other, their relative speed is 320 + 380 mph = 700 mph. The distance traveled is 3500 miles. Since t = d/v, we have t = 3500/700 = 5 hours
Ans: 5 hours