Answer:
-5 miles
Explanation:
We are given the following information in the question:
When we write 8 miles it actually denotes 8 miles due south that is the direction is south.
We are taking the south direction as +8 miles.
Now, if we want to denote 5 miles due north.
We have to take in consideration the direction which is opposite to south direction.
Therefore,we use a negative sign to represent this opposite direction.
So, we can denote 5 miles due noerth by -5 miles.