Determine units of a quantity in a formula

Question

A city planner calculates the population density in planning development of a city. She finds that 50,959 people live in an area of 389 km squared. IN her calculation , she uses the formula for population density Density = people/area = 50,959/389= 131 in what units should the population density of 131 be given?Determine

 

 

I am solving for  the units of quantity in a formula. I am completely lost. Please help? what are the steps I should be looking at?

 

THANKS

Answer 1

There are 131 people per square kilometer.  This may be written as  131 people/km^2

Answer 2

What dimensions does does the formula you are using use? You are given population density in people/area with area in km squared which can be easily converted to other area units if necessary. I think you may have omitted part of your problem.