Final answer:
Deshawn ran at a speed of 10 miles per hour by dividing the distance he ran, 10 miles, by the time it took, which was 1 hour.
Step-by-step explanation:
To calculate the running speed of Deshawn, we divide the total distance he ran by the time it took to run that distance. Deshawn ran 10 miles in 1 hour, so his speed can be found by dividing the distance (10 miles) by the time (1 hour):
Speed = Distance ÷ Time
Speed = 10 miles ÷ 1 hour
Speed = 10 miles per hour
This calculation shows that Deshawn was running at a speed of 10 miles per hour.