Algebra

An asthma medicine is to be prepared from an elixir with a drug concentration of 5 mg/mL and a cherry flavored syrup that is to be added to hide the taste of the drug. How much of each must be used to prepare 100 mL of solution with a drug concentration of 2 mg/mL?

asked by Serena
  1. If x mL of 5% solution is used, add up the drug amount in the elixir and the syrup. It must equal the drug amount in the final solution:

    5x + 0 = 2(100)
    x = 40

    So, 40mL of elixir and 60mL of syrup

    Or, think of it as obtaining 2/5 the concentration, so we need 5/2 the volume. 5/2(40) = 100

    posted by Steve

Respond to this Question

First Name

Your Response

Similar Questions

  1. Algebra

    An asthma medicine is to be prepared from an elixir with a drug concentration of 5 mg/mL and a cherry flavored syrup that is to be added to hide the taste of the drug. How much of each must be used to prepare 100 mL of solution
  2. Math

    A pharmacist is to prepare 30 milliliters of a solution with a drug concentration of 2 mg/mL. To do so, he will mix a solution with a drug concentration of 7 mg/mL with grape-flavored syrup. If 𝑥 represents the number of
  3. pharmacy calculations

    1.a newborn weighs 3,000 g. what is his weight in kilograms? 2.a newborn weighs 3,000g. what is his weight in pounds? 3.a stock bottle contains 2.5 liters of solution how many 2oz bottles can be filled using this solution? 4.you
  4. economics in healthcare

    6. Calculate Herfindahl Index and Concentration Ratios for these markets. Drug Companies H.I. = ?, C.R. ? Health Care Providers: H.I.=? , C.R.= ? 2005 SOM 2005 SOM Drug Co1 18.8 HC Co 1 43.1 Drug Co2 17.9 HC Co 2 31.7 Drug Co3
  5. P.E. ASAP PLZ

    A person who has a really bad cough decides to take twice the recommended amount of cough syrup. This is an example of Drug misuse*** Drug abuse A drug overdose Proper drug use
  6. Health (Ms. Sue)

    Compare the term drug with the term medicine. A: The term drug and the term medicine both describe types of drugs. However, these types of drugs are very different. For example, the term drug is any substance that causes a change
  7. math

    solve the problem A drug is injected into a patient and the concentration of the drug is monitored. The drug's concentration, C(t), in milligrams after t hours is modeled by C(t) = (7t)/2t^2+4.
  8. polynomials & rational function

    A drug is administered to a patient and the concentration of the drug in the bloodstream is monitored. At time t >= 0(in hours since giving the drug) the concentration is given by(in mg/L) c(t) = 5t / (t^2+1) Graph the
  9. Math

    A drug in the bloodstream has a concentration of c(x) =3t/t^2 + 1 Approximate the highest concentration of the drug reached in the bloodstream Determine how long it takes for the drug to drop below 0.2. Solve algaebraically
  10. math

    A drug in the bloodstream has a concentration of c(x) =3t/t^2 + 1 Approximate the highest concentration of the drug reached in the bloodstream Determine how long it takes for the drug to drop below 0.2. Solve algaebraically

More Similar Questions