Solution:
Given that,
The vent is 3.1 miles below the sea's surface
To find: kilometers below the sea's surface is the vent
From given,
1 kilometer = 0.6214 miles
Use the above conversion factor and convert 3.1 miles to kilometers
From above,
[tex]1\ miles = \frac{1}{0.6214}\ kilometers[/tex]
Therefore,
[tex]3.1\ miles = \frac{3.1}{0.6214}\ kilometers = 4.988 \approx 5\ kilometers[/tex]
Thus, approximately 5 kilometers, below the sea's surface is the vent