SOLUTION: Dr. Palma prescribes 10 ml of a 10%-solution of medicine. The pharmacist has a 25%solution and 5%-solution of this medicine. How many milliliters of the 25%-solution should be mixe

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Question 842537: Dr. Palma prescribes 10 ml of a 10%-solution of medicine. The pharmacist has a 25%solution and 5%-solution of this medicine. How many milliliters of the 25%-solution should be mixed to fill the description?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi

How many highlight_green%28x%29 milliliters of the 25%-solution should be mixed to fill the description?

 .25x + .05(10ml-x) = .10•10ml    |Solve for x

         x = .05•10ml/.20