Answer:
[tex]5.82 \: miles \: per \: hour[/tex]
Step-by-step explanation:
Let's check out the formula of speed:
[tex]average \: speed = \frac{total \: distance}{total \: time} [/tex]
So now we simply can put the values in their correct positions and viola!
Note:
[tex] \frac{11}{4} = 2.75 \: hours[/tex]
So
[tex] \frac{16}{2.75} = 5.82 \: miles \: per \: hour[/tex]