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 $1100. How much does the golf course charge for adults?
Question
Answer:
{50a+50c=800{65a+75c=1100
{15a+15c=240
{13a+15c=220
2a=20
a=10
Golf course charge for adults $10
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