Exactly 1 hour
Time = Distance/Speed = 700 mi / 80 mph = 8.75 hours.
speed = distance/time time = distance/speed = 800mi/80mi/h = 10h
7 hours
90 minutes.
75 miles/80mph= 56 1/4 minutes
One hour
1 hour
3 hours 32 minutes.
It will take about 8 hours 7 minutes of total driving time at a constant 80 mph. Add some time for stops and delays.
26miles/80mph=0.325 hours or 19.5 minutes.
3.8625 hours
75 minutes.
45 minutes.
Exactly 1 hour
Speed = distance/timetime = distance/speedtime = 544/80time = 6.8 hourstime = 6 hours 48 minutes
To drive 80 miles at 80mph takes 1 hour. To drive 1200 at 80mph takes 1200/80 = 15 hours.