Answer:
The average speed is:
[tex]\var{v}=75\: miles/h[/tex]
Step-by-step explanation:
The average speed equation is given by:
[tex]\var{v}=\frac{\Delta x}{\Delta t}[/tex]
Were:
Then we have:
[tex]\var{v}=\frac{225}{3}[/tex]
[tex]\var{v}=75\: miles/h[/tex]
I hope it helps you!