Just divide the distance by the speed.
2012 - 1470 = 542
10.5
The Keys are 120 miles long. Dallas to Key West is 1470 miles.
going 60 miles an hour
7.86 miles
58.285714286 minutes you drive 68 miles 60 minutes you drive 70 miles
2000 miles
it depends on your speed
About 5.5 hours.
Depends on your speed.
6 hours