Question

film department held a fundraiser by showing the movie pi. admission was 6$ for students and 7$ for nonstudents. The number of students who attended was 11 more than 3 times the number of nonstudents who attended. If the department raised 541$ how many students attend the movie?

Answer 1

If S is students and n is nonstudents
S = 3n + 11
541 = 6(3n + 11) + 7n
541 = 18n + 66 + 7n
475 = 25n
n = 19

19 nonstudents so then you put that number in the first equation

S = 3(19) + 11
S = 68

68 students attended the movie