Answer: Equation to describe this situation.

Number of steps in one mile for Gustave =2100
Explanation:
Given : Gustave measured his pace and determined that for him, s steps make up one mile.
1 mile = s steps (1)
One day Gustave walked 6300 steps, which was 3 miles.
i.e. 3 miles = 6300 steps (2)
Using (2), the number f steps in 3 steps will be :_
3 miles = 3s steps (3)
From (2) and (3), we have

Dividing both sides by 3 , we get

Hence, the number of steps in one mile for Gustave =2100