Question

It took Carla 36 minutes to run four miles. Convert this ratio into a unit rate by finding how long it took Carla to run one mile.(1 point)
Responses

1/9 minutes/mile

9 miles/minute

9 minutes/mile


1/9 miles/minute

Answer 1

To find the unit rate for how long it took Carla to run one mile, we need to divide the total time by the total distance.

Given:
- Total time = 36 minutes
- Total distance = 4 miles

The unit rate would be the time per mile, or:
\[ \text{Time for one mile} = \frac{\text{Total time}}{\text{Total distance}} = \frac{36 \text{ minutes}}{4 \text{ miles}} \]

Now we calculate this:
\[ \text{Time for one mile} = \frac{36}{4} \text{ minutes/mile}= 9 \text{ minutes/mile} \]

So, the correct answer is:

9 minutes/mile