Answer:
13
Step-by-step explanation:
Answer:
0
Step-by-step explanation:

Let's assume
number of child tickets sold on saturday is x
number of adult tickets sold on saturday is y
On saturday, twice as many adult tickets as child tickets were sold
so, we get

child admission is $6.30 and adult admission is $9.60
a total sales of $535.50
we get

now, we can plug y=2x

now, we can solve for x


now, we can find y


so,
number of child tickets sold on saturday is 21
number of adult tickets sold on saturday is 42.........Answer
Explanation is in the file
tinyurl.com/wpazsebu