Let's break down the problem step by step.
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Total number of people: Ethan and his 7 friends make a total of \( 8 \) people.
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Total pieces of food: There are \( 64 \) pieces of food in total.
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Pizza slices eaten: Each person eats \( 5 \) slices of pizza, so for \( 8 \) people, the total number of slices consumed is: \[ 8 \text{ people} \times 5 \text{ slices/person} = 40 \text{ slices} \]
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Total pieces of food remaining for mozzarella sticks: Since there are \( 64 \) pieces of food in total and \( 40 \) of those are pizza slices, we can find the number of mozzarella sticks: \[ 64 \text{ total pieces} - 40 \text{ pizza slices} = 24 \text{ mozzarella sticks} \]
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Mozzarella sticks eaten per person: To find out how many mozzarella sticks each person ate, we divide the total number of mozzarella sticks by the number of people: \[ \frac{24 \text{ mozzarella sticks}}{8 \text{ people}} = 3 \text{ mozzarella sticks/person} \]
Thus, each person ate 3 mozzarella sticks.