Answer:
$3.10
Explanation:
• For each visit ,(except 7),, he paid for both popcorn and the movie.
,• He has a total of 39 receipts.
Therefore, the number of popcorns that he bought will be:
[tex]\begin{gathered} Number\; of\; popcorns=\frac{39-7}{2}=\frac{32}{2}=16\text{ popcorns} \\ \implies Number\; of\; movies=39-16=23\text{ movies} \end{gathered}[/tex]Since the movie tickets were $12.00 each, the amount spent on movies will be:
[tex]Movie\; Expense=23\times\$12=\$276[/tex]We then use this to determine the amount spent on popcorns.
[tex]\begin{gathered} \text{Amount spent on popcorn}=Total-\text{Amount spent on movies} \\ =325.60-276 \\ =\$49.60 \end{gathered}[/tex]Recall that we earlier stated that Mario bought 16 bags of popcorn.
Therefore, the cost of a bag of popcorn will be:
[tex]\frac{49.60}{16}=\$3.10[/tex]Each bag of popcorn costs $3.10.Each bag of popcorn costs