At the city museum, child admission is $5.90 and adult admission is $9.70. on tuesday, three times as many adult tickets as child tickets were sold, for a total
sales of $1085.00. how many child tickets were sold that day?
could someone explain to me how to do this?

Step-by-step explanation:

1. Set up the equations

              Let a = the number of adult tickets

             and c = the number of child tickets. Then

             9.70a = revenue from adult tickets and

             5.90c = revenue from child tickets

9.70 a + 5.90c = total ticket revenue

You have a system of two equations:

2. Solve the equations

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