density practice

Question

In the city of Manhattan, it takes about 13 Starbucks to serve every 100,000 people. As of 2019, Manhattan has approximately 1,629,000 people. If Manhattan is approximately 23 square miles, what is the density of Starbucks per square mile in the city? 

 

Answer 1

First need to compute how many Starbucks there are in Manhattan

Can set up proportion:

13 starbucks = x starbucks

------ ---------

100000 1629000

Once we know the number of Starbucks we can divide by the number of square miles (23) to get the number of Starbucks per square mile in the city.