SOLUTION: How many cubic centimeters of pure hydrochloric acid should be added to 20 cubic centimeters of a 30% solution of hydrochloric acid to obtain a 50% solution?

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: How many cubic centimeters of pure hydrochloric acid should be added to 20 cubic centimeters of a 30% solution of hydrochloric acid to obtain a 50% solution?      Log On


   



Question 998265: How many cubic centimeters of pure hydrochloric acid should be added to 20 cubic centimeters of a 30% solution of hydrochloric acid to obtain a 50% solution?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
How many cubic centimeters of pure hydrochloric acid should be added to 20 cubic centimeters of a 30% solution of hydrochloric acid to obtain a 50% solution?
-----------
Add x cc's
x*100 + 20*30 = (x+20)*50