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

Algebra ->  Customizable Word Problem Solvers  -> Mixtures -> 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       Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


   



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) About Me  (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
3L-x, amount of 4% solution