It took them 2 hours to get some where and they traveled 48.6 miles how do i get this into miles per hour.?

Use the equation: speed = distance/time So you divide 48.6 by 2 and you get 24.3 miles per hour. That was their average speed on the journey. Divide 48.6 by 2 and it will tell you how many miles they went in 1hr. That will give you the miles per hour.