To find out how many times Delon can ride the roller coaster, we start by determining how many tickets he has left after riding the carousel.
- Total tickets: 37
- Tickets used for the carousel: 4
Remaining tickets for the roller coaster: \[ 37 - 4 = 33 \]
Next, we need to calculate how many times Delon can ride the roller coaster with the remaining tickets. Each ride on the roller coaster costs 3 tickets.
To find the number of rides, we divide the remaining tickets by the tickets per ride: \[ \frac{33}{3} = 11 \]
So, Delon can ride the roller coaster 11 times.
The answer is: 11.