Density from area and volume
The question
16,875 people people per sq mi
People per square mile
How it works.
15 × 15=225 sq mi
16,875÷225=75
75 people per sq mi
- 01
First the area of the land, because the question gives its sides and not its size: 15 × 15 = 225 square miles.
- 02
Density is how much there is in ONE unit, so share the people over the area: 16,875 ÷ 225 = 75.
- 03
So 75 people live on each square mile. That is the density.