SOLUTION: how many cubic centimeters of a 25% antibotic solution should be added to 10 cubic centimetrs of a 60% antibiotic solution in order to get a 30% antibiotic solution?

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Question 81581: how many cubic centimeters of a 25% antibotic solution should be added to 10 cubic centimetrs of a 60% antibiotic solution in order to get a 30% antibiotic solution?
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
x cc's of 25% solution added to 10 cc's of a 60% solution gives (10+x) cc's of a 30% solution

.25x+.6(10)=.3(10+x) ... .25x+6=3+.3x ... 3=.05x ... x=60