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algebra

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A coffee company wants a new flavor of cajun coffee. how many pounds of coffee worth $10 a pound should be added to 20 pounds of coffee worth $4 a pound to get a mixture worth $5 a pound?

  • algebra - ,

    x = lbs of cheaper coffee
    10x = value of cheaper coffee
    4 = lbs of better coffee
    4 * 20 = 80 = value of better coffee
    20 + x = lbs of mixture
    5(20 + x) = value of mixture

    10x + 80 = 5(20 + x)
    Solve for x

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