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Rachel offers to go to the bakery to buy cookies and cupcakes
for her coworkers. She buys a total of nine treats for $35.75. If
cookies cost $3.75 each and the cupcakes cost $4.25 each,
how many cookies, x and cupcakes, y did she buy? Express
your answer as an ordered pair (x,y).

Respuesta :

mayarsakir

Answer:

5 cookies, 4 cupcakes

Step-by-step explanation:

3.75x+4.25y=35.75

x+y=9

x=9-y

3.75(9-y)+4.25y=35.75

33.75-3.75y+4.25y=35.75

0.5y=2

y=4

x=9-4=5

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