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Jacob and Adam are selling pies for a school fundraiser. Customers can buy cherry pies and blackberry pies. Jacob sold 1 cherry pie and 1 blackberry pie for a total of $35. Adam sold 12 cherry pies and 9 blackberry pies for a total of $360. Find the cost each of one cherry pie and one blackberry pie. Write as an ordered pair. Ex: (cherry pie, blackberry pie)

Sagot :

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Answer:

Step-by-step explanation:

c and b are the number of cherry and blackberry sold.

1c + 1b = 35

b = 35-c

12c +  9b = 360

12c + 9(35-c) = 360

3c = 45

c = 15

b = 35-c = 20

$15 for one cherry pie, $20 for one blackberry pie.

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