document.write( "Question 264470: A coffee shop mixes Brazilian coffee worth $5 per kilogram with Turkish coffee worth $8 per kilogram. The mixture is to sell for $7 per kilogram. How much of the Turkish coffee should be used to make 300 kg of the mixture? \n" ); document.write( "
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A coffee shop mixes Brazilian coffee worth $5 per kilogram with Turkish coffee worth $8 per kilogram. The mixture is to sell for $7 per kilogram. How much of the Turkish coffee should be used to make 300 kg of the mixture?
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\n" ); document.write( "B = amount of Brazilian coffee
\n" ); document.write( "5B + 8(300-B) = 7*300
\n" ); document.write( "5B + 2400 - 8B = 2100
\n" ); document.write( "B = 100 kg of Brazilian
\n" ); document.write( "--> 200 kg of Turkish
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