4 mph.
Remember Speed = distance(miles) / time(hours)
15 minutes = 1/4 hours.
Susbtituting
speed = 1mile/ (1/4 hours) (Division of fractions).
speed = 1 miles X 4/1 per hours
speed = 4 mph.
(.25 miles / 3 minutes) * (60 minutes / 1 hr) = (.25 * 60)/3 = 5 mph If you run a quarter mile in 3 minutes, your average speed is 5 mph.
5 mph (miles per hour)
10 minutes 10 seconds at a constant 5.9 mph, excluding speed changes or stops.
12 minutes and 1 second at a constant 5 mph, excluding speed changes or stops.
If you are running 12 miles in one hour, divide 60 minutes by 12 to get (5 minute miles).
Average speed is about 6 mph.
You need to run at an average speed of 15 mph.
(.25 miles / 3 minutes) * (60 minutes / 1 hr) = (.25 * 60)/3 = 5 mph If you run a quarter mile in 3 minutes, your average speed is 5 mph.
To run 1 mile in eight and a half minutes you must maintain a speed of 7.06 mph
5 mph (miles per hour)
If your average speed for the whole mile is 4.5 mph, your finishing time will be around 13 minutes 20 seconds.
If 15 MPH is 4 minutes, an estimate would be about 8 minutes, half the speed and double the time.
10 minutes 10 seconds at a constant 5.9 mph, excluding speed changes or stops.
12 minutes and 1 second at a constant 5 mph, excluding speed changes or stops.
One mile in 4.13793 minutes if running at 14.5 mph.
If you are running 12 miles in one hour, divide 60 minutes by 12 to get (5 minute miles).
Running a mile in exactly 4 minutes equates to a speed of 15 MPH.