Mathematics, 17.12.2019 02:31 michelle230
Afamily purchased tickets for a concert. they paid a total of $90 for 7 adults and 12 child tickets. the price of a child ticket was 2/3 the price of an adult ticket. how much was the price of an adult ticket?
Answers: 3
----> equation A 
----> equation B 
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Afamily purchased tickets for a concert. they paid a total of $90 for 7 adults and 12 child tickets....
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