Answer: Cost of tickets for adults = $22
Cost of tickets for children = $15
Total number of tickets sold = 732
Total receipts = $12,912
Let x be number of adult ticket's sold and y be the number of child ticket's sold.
Therefore, we have:
[tex]x+y=732[/tex] --------------- equation 1
[tex]x=732-y[/tex]
Also, we have:
[tex]22 x+15y=12,912[/tex]
Now, let's substitute the value of x:
[tex]22 (732-y)+15y=12912[/tex]
[tex]16104-22y+15y=12912[/tex]
[tex]16104-7y=12912[/tex]
[tex]7y=16104-12912[/tex]
[tex]7y=3192[/tex]
[tex]y=\frac{3192}{7} =456[/tex]
Now, let's substitute the value of y=456 in equation 1, we have:
[tex]x+456=732[/tex]
[tex]x=732-456[/tex]
[tex]x=276[/tex]
Therefore, the number of child ticket's sold is 456 and number of adult ticket's sold is 276