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3 years ago

9

coffee worth 90 cents per pound is mixed with coffee worth 60 cents per pound ro produce a twenty pound blend worth 72 cents per

pound. How much of each type of coffe is used?

1 answer:

Evgesh-ka [11]3 years ago

8 0

90x+60y=72
60y=-90x+72
y=-1.5x+1.2

then create a graph using this formula.

Hope this helps!

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