intermediate algebra

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Oh Nuts! sells pistachio kernels for $6.50 per pound and almonds for $8.00 per pound. How much of each type should be used to make a 50lb mixture that sells for $7.40 per pound?

  • intermediate algebra -

    x = no. lbs of 6.50 nuts
    6.50x = value of 6.50 nuts
    50 - x = no. lbs of 8.00 nuts
    8.00(50 - x) = value of 8.00 nuts
    7.40(50) = value of mixture

    6.50x + 8.00(50 - x) = 7.40(50)

    Solve for x, lbs of 6.50 nuts
    50 - x = lbs of 8.00 nuts

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