To do this you need to know:
60 second in a minute
60 minutes in an hour
1760 yards in one mile
Now first work out how far one would travel running at that speed in one minute, by finding how far you would have traveled in one second-
100/9.7 = 10.30927835051546 yards /second
Then multiply by 60 to get distance traveled in one minute =
10.30927835051546 * 60 = 618.5567010309278 yards / minute.
Now multiply by 60 again to get the distance traveled in an hour
618.5567010309278*60=37113.40206185567 yards / hour
OK we now know that we would be running at a speed of 37113.40206185567 yards an hour. BUT we want the answer in miles an hour, so we have to divide this by the number of yards in a mile:
37113.40206185567/1760=21.09 miles per hour.
Compare this with the related answer for this question where the distance run was in Meters (which are longer than yards - so you would be running faster)
800 meters in 2 minutes is 14.9 miles per hour.
3 miles
3 miles
80 miles per hour
200 miles per hour
(50 yards/6.6 seconds) x (3,600 seconds/hour) / (1,760 yards/mile) = 15.496 miles per hour (rounded)
12 miles per hour equals 352 yards per minute.
44 yards in one second is the same as 90 miles in an hour.
100 yards in 10 seconds 20.45 miles per hour.
100 yards/6.7 seconds = 30.5292 miles per hour (rounded)
You can use math in running by calculating how many miles or yards you have run.
(40 yards) / (4.5 seconds) times (3,600 seconds per hour) / (1,760 yards per mile) =18 and 2/11 miles per hour
1 mile = 1760 yards 1 hour = 60 minutes 220 x 60 = 13200 yards per hours 13200 / 1760 = 7.5 miles per hour.
1,760 yards per minute
352 yards per minute.
It is an average speed of 20.45 miles per hour.
23.35 miles per hour