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You bought 5 chocolate bars and 8 blow pops for $23.25. Your sister bought 2 chocolate bars and 13 blow pops for $21.55. How much did each chocolate bar cost? Each chocolate bar cost $

Respuesta :

mhanifa

Answer:

  • $2.65

Step-by-step explanation:

Let chocolate bar cost be c and blow pop cost be b

Then we have equations:

  • 5c + 8b = 23.25
  • 2c + 13b = 21.55

Multiply the first equation by 13 and the second one by 8 and subtract:

  • 13(5c + 8b) - 8(2c + 13b) = 13(23.25) - 8(21.55)
  • 65c - 16c = 129.85
  • 49c = 129.85
  • c = 129.85/49
  • c = 2.65

Chocolate bar costs $2.65

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