A cyclist rode for 3.5 hours and completed a distance of 60.9 miles. If she kept the same average speed for each hour, how far did she ride in 1 hour? write the exact answer.

To find the average distance the cyclist rode in 1 hour, divide the total distance by the total time.

Total distance = 60.9 miles
Total time = 3.5 hours

Average speed (distance per hour) = Total distance / Total time
= 60.9 miles / 3.5 hours

Calculating that gives:

Average speed = 60.9 / 3.5
= 17.4 miles per hour

So the cyclist rode 17.4 miles in 1 hour at the same average speed.