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30 November, 09:17

A pizza company charges $50.40 for 3 pizzas and 12 drinks. A pizza is $10.80 more than a drink. What is the cost of each drink?

1.

$1.20

2

$1.50

$2.40

$2.50

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Answers (1)
  1. 30 November, 10:29
    0
    A drink costs $1.20

    Step-by-step explanation:

    Step 1: Make a system of equations

    50.40 = 3p + 12d

    p = 10.80 + d

    Step 2: Plug in p for the other equation

    50.40 = 3 (10.80 + d) + 12d

    50.40 = 32.40 + 3d + 12d

    50.40 - 32.40 = 15d + 32.40 - 32.40

    18 / 15 = 15d / 15

    1.20 = d

    Answer: A drink costs $1.20
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