Answer:
For the choir director to collect $1,500, 165 adults need to buy tickets.
Step-by-step explanation:
Since 226 students purchased tickets, we multiply 3 times 226. Our answer is 678. Now we subtract 1,500 - 226 this equals 822. So we need to divide $822 by 5 (the price for adults). We get 164.4. For the choir director to collect $1,500, 165 adults need to buy tickets.