Mathematics, 01.07.2019 12:30 alfonso55
2. a chemist wants to make 4 liters of a 7% acid solution by mixing a 10% acid solution and a 4% acid solution. how many liters of each solution should the chemist use? write your answer as a complete sentence be sure to: (a) define your variable and expressions for the quantities. (b) write an equation that models the problem. (c) solve the equation. (d) state the answer in a complete sentence.
Answers: 1
be the number of liters of the 10% solution to be used, and 
the number of liters of the 4% solution. The chemist wants to end up with a 4 liter solution, so
gives 
, so 2L of both solutions is needed.
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2. a chemist wants to make 4 liters of a 7% acid solution by mixing a 10% acid solution and a 4% aci...
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