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A biologist has 40% solution and 10% solution of the same plant nutrient. How many cubic centimeters of each should be mixed to obtain 25 cc of 16% solution?

  • Math -

    If x cc are 40%, then the rest (25-x) is 10%. So, adding up the nutrient content,

    .40x + .10(25-x) = .16(25)

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