Final answer:
The person's speed is 5 miles per hour.
Step-by-step explanation:
To find the person's speed in miles per hour, we need to convert the distance jogged and the time taken to the same unit.
1 mile is equivalent to 8/8 miles, so the person jogged 1/8 mile in 1/40 hour.
To find the speed, we divide the distance jogged by the time taken: (1/8 mile) ÷ (1/40 hour) = 5 miles per hour.