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A store mixes Kenyan coffee worth $11 per kilogram and Turkish coffee worth $13 per kilogram. The mixture is to sell for $12 per kilogram. Find how much of each should be used to make a 348-kilogram mixture. How many kilograms of the Kenyan coffee should be in the mixture?

  • Algebra -

    11K + 13T = 12*348
    but K+T=348, so

    11K + 13(348-K) = 12*348
    K = 174

    as expected, since the final price is the average of the two kinds, there is an equal amount of each.

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