[tex]\begin{gathered} \frac{57\text{ miles}}{5\text{ hours}}\cdot\frac{1\text{ hour}}{60\text{ minutes}}=\frac{57\text{ miles}}{5\cdot60\text{ minutes}}=\frac{57\text{ miles}}{300\text{ minutes}} \\ =\frac{0.19}{\min }\text{ miles} \end{gathered}[/tex]
