Adrienne had a party at a local swimming pool. She spent fifty dollars for a pavilion and seven dollars per person for admission. Let c be the total cost of the pavilion and admission, and let p be the number of people at her party. Write an equation to represent the problem. Which is the independent variable? Explain.

Answer 1

C= 7p + 50
C represent the total cost of the party, and 7p represents the cost depending upon the number of people attending. The independent variable would be p, people, because Adrienne can change the number of people, it is independent of the other variable. Variable C is dependent upon the number of people, p. This is very, very easy.