Final answer:
Luciana can run approximately 7.273 miles in an hour.
Step-by-step explanation:
To determine how many miles Luciana can run in an hour, we need to find the proportion between the time she can run 3 miles and the time of an hour. We can set up a proportion using the formula:
(3 miles / 24.75 minutes) = (x miles / 60 minutes).
Solving for x, we can cross multiply and divide to find
x = (3 miles * 60 minutes) / 24.75 minutes
= 7.273 miles.