Time = Distance/Speed
So time = 9 miles / 20 mph = 9/20 hours = 60*9/20 minutes = (60/20)*9 minutes = 3*9 minutes = 27 minutes.
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9 hours 42 minutes to travel 565 miles at 60 mph
About 18 minutes at a constant 500 mph.
4.69 hr
5 hours
About 35 minutes.