math

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math

Brennan is selling tickets to choral performance.On the first day of tickets sales,she sold 3 senior citizen tickets and 1 child ticket for a total of $38. Brennan took in $52 on the second day by selling 3 senior citizen tickets and 2 child tickets.
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Re: math

You didn't ask a question.  I assume you want to know the price per ticket.
x = price of senior citizen ticket
y = price of child ticket

3x + y = 38   ← first day 3 seniors and 1 child for $38
3x + 2y = 52   ← second day 3 seniors and 2 children for $52
---------------
      -y = -14   ← subtracted the two equations
       y = 14   ← divided by -1

3x + y = 38   ← first equation
3x + 14 = 38   ← substituted 14 in for y
3x = 24   ← subtracted 14
x = 8   ← divided by 3

senior citizen ticket costs $14
child ticket costs $8

- Proof