Distance can't be expressed in time. If it could, then you'd be able to figure out how many minutes high your house is, and how many miles of sleep you had last night.
With many thanks to another contributor who put my thoughts into his words.
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6 hours 11 minutes.
11 hours 58 minutes.
2009/50=40 hours 11 minutes
55 minutes = 11/12 hours. 19 miles per 11/12 hours = 20.7272 mph or 20+1/8 mph
If you average 60 miles per hour for the entire distance your driving time would be about 11 hours and 53 minutes.