We are given a set of data of distance and time. To determine the speed we need to remember that the speed is definer as follows:
[tex]\text{speed}=\frac{di\tan ce}{time}[/tex]
Therefore, we need to find the difference in distance for any two values and divide that by the corresponding difference in time. Let's take the first two values, we get:
[tex]\text{speed}=\frac{162.5-65}{2.5-1}[/tex]
Solving the operations:
[tex]\text{speed}=\frac{97.5}{1.5}=65[/tex]
Therefore, the speed is 65 miles/hour.
