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OpenStudy (anonymous):
the coffee shop mixes brazilian coffee worth $5/kg with the turkish coffee worth $8/kg. the mixture is to sell for $7/kg. how much of the brazilian coffee do they need to make 300kg of the mixture?
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OpenStudy (anonymous):
\[5x+8(300-x)=7\times 300\]
OpenStudy (anonymous):
nice round number answer too! i get x=100
OpenStudy (anonymous):
thanks so much
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