SOLUTION: a merchant has coffee worth $20a lb that she wishes to mix with 60 lbs of coffee worth $70 a lb to get a mixture that can be sold for $30 a lb. How many of the ponds of the $20 cof

SOLUTION: a merchant has coffee worth $20a lb that she wishes to mix with 60 lbs of coffee worth $70 a lb to get a mixture that can be sold for $30 a lb. How many of the ponds of the $20 cof

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Question 356344: a merchant has coffee worth $20a lb that she wishes to mix with 60 lbs of coffee worth $70 a lb to get a mixture that can be sold for $30 a lb. How many of the ponds of the $20 coffee should be used?
Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
(x)(20) + (60)(70) = (60 + x)(30)
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