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F. Evelyn is running a snack sale during lunch to raise money for charity. She is selling hot Cheetos with
cheese for $1.50 each and chili-cheese fries for $2.50 each. At the end of the day she has raised $150 and
sold 80 items. How many of each item did she sell?

Respuesta :

50 hot cheetos and 30 chili cheese fries

1.50c + 2.50f = 150

c + f = 80

c = 80 - f

1.50(80 - f) + 2.50f = 150

120 - 1.50f + 2.50f = 150

120 + 1.00f = 150

1.00f = 30

f = 30

c = 80 - f

c = 80 - 30

c = 50

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