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the cost of a personal pizza is $4. a drink cost $1. Anna wrote the equation y=4x + 1 to represent the relationship between total cost y of buying x meals that include one personal pizza and one drink.
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the cost of a personal pizza is $4. a drink cost $1. Anna wrote the equation y=4x + 1 to represent the relationship between total cost y of buying x meals that include one personal pizza and one drink. Describe Anna's error and write the correct equation

User Sihirbazzz
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2 Answers

3 votes
Anna has to say y= 4x + 1z in order to get the answer. She didn't realize that she has to put a variable next to both.
User IonicMan
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5 votes
the correct answer should be y=4x + 1d where x equals the number of personal pizzas, and d equals the number of drinks.

She didn't account for the number of drinks ordered for more than one meal.
User Nano HE
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8.1k points
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