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07-11-2018
Mathematics

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tickets to the concert were 2.50$ for adults and 1$ for students 1200$ was collected and 750 tickets were sold

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nvybella nvybella

07-11-2018

2.50a+1s=1200
a+s=750
2.50a+1(750-a)=1200
2.50a+750-1a=1200
1.50a+750=1200
1.50a=450
a=300 -> 300 adult tickets and 450 students tickets

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