SOLUTION: How many gallons of an 8% solution must you add to a 15% solution to get 20 gallons of a 10% solution? Round to the nearest one-tenth gallon.
Algebra.Com
Question 829753: How many gallons of an 8% solution must you add to a 15% solution to get 20 gallons of a 10% solution? Round to the nearest one-tenth gallon.
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
Different example, same problem.
Look at "Mixing two concentrations for known amount of mixture ", through the Lessons link in my profile.
http://www.algebra.com/my/Mixtures%3A-All-in-Symbols.lesson?content_action=show_dev
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