You have not paid for this chapter
Algebra_4
Chapter 78
Problem 3
	Select a different problem
Example:

of the cities tested in the U.S. added fluorine to their drinking water.
If 42000 cities added fluorine,
find the number of cities (C) tested.
Note: round to zero decimal places - no bacteria parts.
This statement can be written in shorthand form as:
 
 
Solving for C gives 
=48000)
 cities 
Thus, there were 48000 cities tested.