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3 years ago

9

Coffee cafe makes 90 pounds of coffee that costs $6 per pound. The types of coffee used to make this mixture cost $7 per pound a

nd $4 per pound. How many pounds of $7-per-pound coffee should be used in this mixture?

1 answer:

olganol [36]3 years ago

7 0

157.5 is ur answer welcome

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3 years ago

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Elis [28]

Answer:

x = -8, y = 4

Step-by-step explanation:

3x + 3y = -12 (1)

x + 6y = 16 (2)

Multiply (2) by 3

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3x + 3y = -12 (1)

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