An organization is planning a dance. The band will cost $400 and advertising costs will be $100. Food will be supplied at $2 per person and tickets cost $6 per person.

Question

How many people will have to attend the dance if the organization want to profit $400?

Answer 1

profit = 6n - 2n - 400 - 100
= 4n + 600 , where n is the number of people

4n - 500 = 400
4n = 900
n = 225

need 225 people to make $400