wellllm
31.12.2021 •
Mathematics
At the movie theatre, child admission is $5.20 and adult admission is $9.00. On Friday, twice as many adult tickets as child tickets were sold, for a total sales of $696.00. How many child tickets were sold that day?
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Ответ:
30
Step-by-step explanation:
Let the number of child tickets sold be
, then the number of adult tickets sold will be 
.
Then the amount made from child tickets will be
, and 
for adults.
So we have
So 30 child tickets were sold that day.
Ответ: