Tickets for a rodeo sold for $25 for adults, $15 for students and $20 for senior citizens. On Thursday night 200 people attended the rodeo. The number of student tickets was the same as the number of...

Tickets for a rodeo sold for $25 for adults, $15 for students and $20 for senior citizens. On Thursday night 200 people attended the rodeo. The number of student tickets was the same as the number of adult and senior citizen tickets together. Total receipts for Thursday night were $3875. Use matrices to determine how many of each type of ticket were sold