Final answer:
To determine the number of buses and vans used for the senior trip to Sun Splash, we can set up a system of equations and solve for the variables. In this case, the number of buses is 5 and the number of vans is 12.
Step-by-step explanation:
In order to determine the number of buses and vans used, we need to set up a system of equations based on the given information.
Let x be the number of buses used.
Let y be the number of vans used.
From the problem, we know that:
- The total number of seniors is 427.
- The number of seniors that can be accommodated in one bus is 35.
- The number of seniors that can be accommodated in one van is 7.
Using these equations, we can set up the following system:
x + y = 17 (equation 1)
35x + 7y = 427 (equation 2)
We can solve this system of equations using the method of substitution or elimination to find the values of x and y.
After solving the system, we find that x = 5 and y = 12.
Therefore, 5 buses and 12 vans were used for the senior trip to Sun Splash.