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At a restaurant the cost for a breakfast taco and a small glass of milk is $2.10. The cost for

2 tacos and 3 small glasses of milk is $5.15. How much does a taco cost? How much does a

small glass of milk cost?

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Answers (1)
  1. 2 May, 17:45
    0
    x = taco

    y = milk

    x + y = 2.10$

    x = 2.10 - y

    2x + 3y = 5.15$

    2 (2.10 - y) + 3y = 5.15$

    4.20 - 2y + 3y = 5.15

    y = 0.95

    2x + 3 (0.95) = 5.15

    2x = 5.15 - 2.85

    x = 1.15

    So one taco is 1.15$ and a small glass of milk is

    0.95$
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