3) The senior class is planning to take two separate trips to Disneyland. On the first trip, the seniors had to rent 12 vans and 10 buses with 690 students. On the second trip, they only needed 7 vans and 10 buses as they only took 615 students. There was no difference in the size of the vans and no difference in the size of the buses. How many students went in each van? How many students went in each bus? Let x = Let y = Equation 1: Equation 2: