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Riley and her friends buy snacks at the movies. They buy 3 pretzels and 4 drinks for $17.50. The cost of a pretzel is the same as the cost of a drink. The situation can be represented by the graph and the system of equations shown, where p is the cost of a pretzel and dis the cost of a drink. I a. What is the cost of each pretzel? What is the cost of each drink? Show your work.​

Riley and her friends buy snacks at the movies They buy 3 pretzels and 4 drinks for 1750 The cost of a pretzel is the same as the cost of a drink The situation class=

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Answer:

Each costs $2.50

Step-by-step explanation:

Given

  • Cost of 3 pretzels and 4 drinks = $17.50
  • p = d

Solving

  • 3p + 4d = 17.50
  • But, p = d
  • 3d + 4d = 17.50
  • 7d = 17.50
  • d = $2.50
  • ⇒ p = $2.50

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