A miniature golf course charges different prices for adults and children. On Saturday, 50 adults and 50 children played, and the golf course earned $800. On Sunday, 65 adults and 75 children played, and the golf course earned $1,100. How much does the golf course charge for adults?
A. $6
B. $8
C. $10
D. $16
Let p be the price for a child and a be the price for an adult.
50a + 50p = 800
65a + 75p = 1100
Multiply the first equation by 5:
250a + 250p = 4000
65a + 75p = 1100
Subtract the second equation from the first:
185a = 2900
a = <<16=16>>16
Thus the golf course charges $16 for adults.
Answer: \boxed{D}.