# Math

Exactly 120 tickets were sold for a concert. The tickets cost \$12 each for adults, \$10 each for seniors, and \$6 each for children. The number of adult tickets sold was equal to the number of child tickets sold. Given that the total revenue from the tickets sales was \$1100, the number of senior tickets sold was?

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1. A+S+C=120
12A+10S+6C=1100
A=C

2A+S=120
18A+10S=1100

multipuly top equation by 10, then subtract..

2A=100
A=50
C=50
S=20

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bobpursley

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