math

posted by .

a pharmacist mixed some 10% saline solution with some 15% saline solution to obtain 100ml of a 12%saline solution.How much of 10% saline solution did the pharmist use in the mixture.dO NOT UNDERSTAND TO MUCH INFO.

  • math -

    .024 divided by .235

  • math -

    how did you get that

  • math -

    let the amount of 10% solution be x ml
    then the amount of 15% solution must be 100-x ml

    .10x + .15(100-x) = .12(100)
    10x + 15(100-x) = 12(100)
    10x + 1500 - 15x = 1200
    -5x = -300
    x = 60

  • math -

    31.25 liters

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. chemistry

    Isotonic saline and is often given to patients intravenously to replenish lost fluids. Isotonic saline is a 0.9% 9G/100ml) solution of salty water. You are asked to make up 21 of isotonic saline. How much salt should you weigh out?
  2. chemistry

    Isotonic saline is often given to patients intravenously to replenish lost fluids. Isotonic saline is a 0.9g/100ml solution of salty water. You are asked to make up 2:1 of isotonic saline. How much salt should you weigh out?
  3. MATH

    A pharmacist mixed some 10%-saline solution with some 15%-saline solution to obtain 100 mL of a 12%-saline solution. How much of the 10%-saline solution did the pharmacist use in the mixture?
  4. Algebra

    A saline solution was made by mixing 11 ml of a 36% saline solution and 6 ml of a 53 % saline solution. How do I find the consentration of the new mixture?
  5. algebra

    Nurse erika needs to prepare 12 liters of a 10% saline solution. The stockroom only has 7 % and 15% saline solutions. How much of each solution should erika mix together to get 12 litres of a 10% saline solution
  6. algebra

    Nurse erika needs to prepare 12 liters of a 10% saline solution. The stockroom only has 7 % and 15% saline solutions. How much of each solution should erika mix together to get 12 litres of a 10% saline solution
  7. math

    you have an unlimited supply of 5% saline solution and 8% saline solution. How much of each type would you have to use to create 60 ounces of 7% saline solution?
  8. math

    A pharmacist mixes 14 ounces of 68% saline solution with 55% saline solution. If the final mixture is 62% saline, how many ounces of the 55% solution were used?
  9. Math Mixture Word Problem

    How much water must be added to 1 liter of a 5% saline to get a 2% saline solution
  10. Algebra 1 college

    How much of a 12% saline solution should be mixed with a 4% saline solution to obtain 40 milliliters of a 6% saline solution?

More Similar Questions