To determine the total cost for Ellie and her kids, we first need to calculate the cost of the movie tickets and then add the cost of the snacks.
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Cost of Movie Tickets:
- Ellie is going to the movie with her 2 kids, which makes a total of 3 tickets.
- The price of each movie ticket is $13.
- Total cost for tickets: \( 3 \text{ tickets} \times 13 \text{ dollars/ticket} = 39 \text{ dollars} \)
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Cost of Snacks:
- Ellie plans to buy 4 snacks.
- The price of each snack is $5.
- Total cost for snacks: \( 4 \text{ snacks} \times 5 \text{ dollars/snack} = 20 \text{ dollars} \)
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Total Cost:
- Total cost for the movie and snacks: \[ 39 \text{ dollars (tickets)} + 20 \text{ dollars (snacks)} = 59 \text{ dollars} \]
Now, if Ellie decides to buy \( x \) snacks instead of 4:
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Total cost for snacks when buying \( x \) snacks: \[ x \text{ snacks} \times 5 \text{ dollars/snack} = 5x \text{ dollars} \]
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Total cost when buying \( x \) snacks: \[ 39 \text{ dollars (tickets)} + 5x \text{ dollars (snacks)} = 39 + 5x \text{ dollars} \]
Summary:
- If Ellie buys 4 snacks, the total cost is $59.
- If Ellie buys \( x \) snacks, the total cost will be \( 39 + 5x \) dollars.