If it takes you 25 minutes to run 1 3/4 miles, that means you can run 7/4 miles in 25 minutes. To find out how far you can run in an hour, we can set up a proportion. Since there are 60 minutes in an hour, we can cross multiply and solve for the distance:
25 minutes / 7/4 miles = 60 minutes / x miles
(25 * x) = (7/4 * 60)
x = (7/4 * 60) / 25
x = 10.5 miles
So you can run approximately 10.5 miles in an hour. Keep up the great work!