Final answer:
After paying the $5 entry fee from his $20, Aiden has $15 left. Since ride tickets cost $2 each, he can buy 7 ride tickets with his remaining money.
Step-by-step explanation:
To determine how many ride tickets Aiden can buy, we must first calculate the total cost of entering the fair and then see how much money he has left for tickets. Aiden has $20 and the entry fee is $5, which leaves him with $15 after he pays for entry. Each ride ticket costs $2.
We can find out how many tickets he can buy by dividing the remaining money by the cost per ticket:
- Subtract the entry fee from Aiden's total money: $20 - $5 = $15 remaining.
- Divide the remaining amount by the cost of one ride ticket: $15 ÷ $2 = 7.5.
Because Aiden cannot buy half a ticket, he can buy a total of 7 ride tickets with the amount of money left after paying the fair entry fee.