SOLUTION: A custodian is going to mix a 4% ammonia solution and a 12% ammonia solution to get 1 gallon (128 fluid ounces) of a 9% ammonia solution. How many fluid ounces of the 4% solution a

Algebra ->  Customizable Word Problem Solvers  -> Misc -> SOLUTION: A custodian is going to mix a 4% ammonia solution and a 12% ammonia solution to get 1 gallon (128 fluid ounces) of a 9% ammonia solution. How many fluid ounces of the 4% solution a      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 896043: A custodian is going to mix a 4% ammonia solution and a 12% ammonia solution to get 1 gallon (128 fluid ounces) of a 9% ammonia solution. How many fluid ounces of the 4% solution and the 12% solution should be used?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
One gallon is 128 fluid ounces.

Study this lesson because it is the process and general method you want.
http://www.algebra.com/my/Mixtures%3A-All-in-Symbols.lesson?content_action=show_dev - Mixing two concentrations for known amount of mixture