3 miles an hour
You will need to know how fast you are traveling. Once you have that, divide 45 (miles) by your speed.
42.86 miles per hour.
If my calculations are right you need to travel 20 miles per hour to reach ten miles in thirty minutes.
32 mph
120 mph
56 mph
158.8mph for 343 miles in 2hours and 16 min
0.138 mi/min (miles per minute)8.27 mph (miles per hour)
6.29*60/25 = 15.096 mph
1 mile in 4 minutes = 15 miles per hour
Speed = Distance / Time = 28 miles / 30 minutes = 56 miles per hour - on average.
56 MPH 56 miles/1 hr 56 miles/60 minutes Therefore, if you have 30 minutes, it is half of 60. Divide 56 by half, and you have 28.