SOLUTION: 2. A chemist wishes to make 3 liters of a 7% acid solution by mixing a 9% acid solution and a 4% acid solution. How many liters of each solution should the chemist use? Write your
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Question 924831: 2. A chemist wishes to make 3 liters of a 7% acid solution by mixing a 9% 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:
• Define your variable and expressions for the quantities.
• Write an equation that models the problem.
• Solve the equation.
• State the answer in a complete sentence.
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
x amount of 9% solution
.09x + .04(3L - x) = .07(3L)
x = .03(3L)/.05 = 1.8L, amount of 9% solution
and
, amount of 4% solution
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