Answer:
t = 8.82 minutes
Explanation:
The average speed of an object is given bu the total distance covered divided by total time taken.
The average speed of a kid is 6.8 mi/h
Let t is the time taken by this kid to run a mile, d = 1 mile
[tex]v=\dfrac{d}{t}\\\\t=\dfrac{d}{v}\\\\t=\dfrac{1\ \text{miles}}{6.8\ \text{mi/h}}\\\\t=0.147\ \text{hour}[/tex]
or
t = 8.82 minutes
So, it will take 8.82 minutes to run a mile.