SCVCS is planning a trip to the zoo and to the pumpkin patch for the entire school on the same day. The cost of a student ticket for the zoo ( x ) is $10.50 and the cost for a student to attend the pumpkin patch ( y ) is $8.75. SCVCS plans to spend $7,612.50 on both sets of tickets. Use the equation that models this situation and find how many zoo tickets SCVCS will need to purchase if 360 tickets to the pumpkin patch have already been purchased.