It took Liam 15 minutes to ride his bike three miles. Convert this ratio into a unit rate by finding how long many minutes did he take to travel one mile.(1 point)

To find the unit rate, you need to calculate how many minutes it took Liam to ride one mile.

Liam took 15 minutes to ride three miles. To find the time per mile, you can divide the total time by the number of miles:

\[ \text{Time per mile} = \frac{\text{Total time}}{\text{Total miles}} = \frac{15 \text{ minutes}}{3 \text{ miles}} = 5 \text{ minutes/mile} \]

The correct response is:

5 minutes/mile