Answer:
Neighborhoods that sheriff patrol in 5/8 of an hour is 3.125.
Explanation:
The Time taken to patrol an entire neighborhood = 3/ 15 hour
Total amount of time, the Sheriff has to do patrolling = 5/ 8 of an hour.
Now, let us assume the total neighborhoods paroled in the given time = m
So,


or, the number of neighborhoods covered = 3.125
Hence, neighborhoods that sheriff patrol in 5/8 of an hour is 3.125.