To convert the ratio into a unit ratio, we need to find how long it took Carla to run 1 mile.
36 minutes / 4 miles = 9 minutes per mile.
So, it took Carla 9 minutes to run 1 mile.
I took Carla 36 minutes to run 4 miles convert this ratio into a unit ratio by finding how long it took Carla to run 1 mile
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