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sesenic [268]
2 years ago
8

14) Amanda and James are selling pies for a school fundraiser. Customers can buy blueberry pies

Mathematics
2 answers:
Sveta_85 [38]2 years ago
5 0

Step-by-step explanation:

Let,

Cost of blueberry pie = x

Cost of lemon meringue = y

13x + 12y = 285 (1)

3x + 12y = 195 (2)

=> 13x + 12y - (3x + 12y) = 285 - 195

=> 13x + 12y - 3x - 12y = 90

=> 10x = 90

=> x = 90/10

=> x = $ 9

From 2

3(9) + 12y = 195

=> 27 + 12y = 195

=> 12y = 195 - 27

=> 12y = 168

=> y = 168/12

=> y = $ 14

zvonat [6]2 years ago
3 0

Answer:

  • Blueberry pie costs $9, lemon meringue cost $14

Step-by-step explanation:

<u>Set equations:</u>

  • 13x + 12y = 285
  • 3x + 12y = 195

<u>Solve by elimination. Subtract the second equation from the first:</u>

  • 13x + 12y - 3x - 12y = 285 - 195
  • 10x = 90
  • x = 9

<u>Find the value of y:</u>

  • 3*9 + 12y = 195
  • 12y = 195 - 27
  • 12y = 168
  • y = 168/12
  • y = 14
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