Explanation:
Given in the question:
[tex]\begin{gathered} distance=3.1mile \\ speed=s \end{gathered}[/tex]The formul for time is given below as
[tex]t=\frac{distance}{speed}[/tex]By substituting the values, we will have
[tex]\begin{gathered} t=\frac{d\imaginaryI stance}{speed} \\ t=\frac{3.1}{s} \\ \end{gathered}[/tex]Hence,
The final answer is
[tex]t=\frac{3.1}{s}[/tex]