the planes are approaching at 520+620=1140 mph
By the time the 2nd plane takes off, the distance between the planes is only 1800-520=1280 miles
At those speeds, they cover the distance in 1280/1140 = 1.123 hours
I expect you can now answer the question.
A plane leaves Chicago headed for Los Angeles at 520 mph. One hour later, a second plane leaves Los Angeles headed for Chicago at 620 mph. If the air route from Chicago to Los Angeles is 1800 miles, how long will it take (after the first plane takes off) for the first plane to pass the second plane? (Round your answer to two decimal places.) Need the h. and mi. please and thanks
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