Question 184500
S+A=50 OR S=50-A
3S+5A=180
3(50-A)+5A=180
150-3A+5A=180
2A=180-150
2A=30
A=30/2
A=15 ADULT TICKETS SOLD.
50-15=35 STUDENT TICKETS SOLD.
pROOF:
3*35+5*15=180
105+75=180
180=180