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21 November, 01:41

When visiting friends in a state that has no sales tax, two families went to a fast-food restaurant for

lunch. The Browns bought 4 cheeseburgers and 3 medium fries for $16.53. The Greens bought 5

cheeseburgers and 4 medium fries for $21.11.

Using c for the cost of a cheeseburger and f for the cost of medium fries, write a system of

equations that models this situation.

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Answers (1)
  1. 21 November, 03:18
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    Answer: The system of equations that models this situation is

    4c + 3f = 16.53

    5c + 4f = 21.11

    Step-by-step explanation:

    Let c represent the cost of a cheeseburger.

    Let f represent the cost of medium fries.

    The Browns bought 4 cheeseburgers and 3 medium fries for $16.53. It means that

    4c + 3f = 16.53

    The Greens bought 5

    cheeseburgers and 4 medium fries for $21.11. It means that

    5c + 4f = 21.11
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