Question

Tammy is selling tickets for the school jazz band concert. Adult tickets cost $5, and student tickets cost $3. If Tammy sells a total of 170 tickets and collects $650, how many of each kind of ticket did she sell?

Answer 1

adult+student=170 ----(1)
5adult+3student=650 ----(2)

(1)*3; 3adult+3student=510 ----(3)
(2)-(3); 2adult = 140
so adult = 70
then student = 170-70 = 100

answer: Tammy sold 70 adult tickets and 100 student tickets

Answer 2

70 adult and 100 kids tickets