Guys this is a real problem!!! Will mark brainliest!!

Answer:
Step-by-step explanation:
Let the student tickets sold = x
Let the non-student tickets = y
x + y = 311
0.5x + 1.5y = 385.5 Multiply the second equation by 2
x + 3y = 771 Subtract2y the first equation
x + y = 311
2y =460
y = 230
x then will equal 311 - 230 = 81
Check
81 * 0.5 = 40.5
230 * 1.5 = 345
Total = 385.5 just as it should