Answer: 2.2 miles per hour
Step-by-step explanation:
Since we are given his speed in one third of an hour, we can simply triple his speed to get his miles per hour.
[tex]\frac{11}{15} * 3\\= \frac{33}{15}\\\\= 2 \frac{1}{5}[/tex]
or, 2.2 miles per hour
