find total of tickets sold

Question

At a carnival, $2,914.25 in receipts were taken at the end of the day. The cost of a child's ticket was $20.50, an adult ticket was $29.75, and a senior citizen ticket was $15.25. There were twice as many senior citizens as adults in attendance. How many children, adult and senior citizen tickets were sold?

Answer 1

 

S = 2A

 

20.50 C + 29.75 A + 15.25 S = 2914.25

 

20.50 C + 29.75A + 15.25(2A) = 2914.25

 

20.50C + 29.75A + 30.50A = 2914.25

 

20.50C + 60.25A = 2914.25

 

2050C + 6025A = 291425

 

 

So now we need another piece of info. so

we can get another equation from that

and use it solve the problem.

 

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