A mile is a unit of distance. An hour is a unit of time. Without some unit of speed to convert, the two units are incompatible.
About 10 hours.
At an average 75 mph, 10 hours.
750 miles / 60 miles/hr = 12.5 hours.
750 miles @ 60 MPH is 12.5 hr.
10.71 hours (no rest period)
About 11 hours 32 minutes
11 hours 32 minutes @65 mph
750 miles and hours mate
Time = Distance/Speed = 750/55 = 13.6363.. hours - assuming you can keep up an average speed of 55 mph for more than 13 hours.
about 750 miles
750 miles, or about two hours.
The total distance between the two locations is 750 miles. It will take about 11 hours and 1 minutes.