Chapter2: Equations And Inequalities
Section2.3: Models And Applications
Problem 22SE: A chemistry teacher needs to mix a 30% salt solution with a 70% salt solution to make 20 qt of a 40%...
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A chemist has 70 mL of a 50% methane solution. How much of a 80% solution must she add so the final solution is 60% methane?
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