Answer: 12 miles per hour.
Step-by-step explanation:
Given: Distance travelled = [tex]\dfarc16\ mile[/tex]
Time taken = [tex]\dfrac1{72}[/tex] hour
Unite rate = speed
The formula for speed is given by:-
[tex]speed =\dfrac{Distance}{Time}[/tex]
So, unit rate = [tex]\dfrac{\dfrac{1}{6}}{\dfrac{1}{72}}\ mile/ hour[/tex]
[tex]=\dfrac{72}{6}\ mile /hour\\\\=12\ miles /hour[/tex]
Hence, unit rate = 12 miles per hour.
