SOLUTION: the drama club sold 1500 tickets for the end of the year performance. admission prices were $12 for adults and $6 for students. the total amount collected at the box office was $15

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Question 256749: the drama club sold 1500 tickets for the end of the year performance. admission prices were $12 for adults and $6 for students. the total amount collected at the box office was $15,600. how many students attended the play?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
A-adult tickets
S-student tickets
1.A%2BS=1500
2.12A%2B6S=15600
From 1,
A=1500-S
Substitute into eq. 2,
12A%2B6S=15600
12%281500-S%29%2B6S=15600
18000-12S%2B6S=15600
-6S=-2400
S=400
Then from eq. 1,
A=1500-S
A=1500-400
A=1100