b) 100 mL of a 60% solution is to be made from mixing a 40% solution with a 70% solution. How many mL of the 40% solution are needed? How many mL of the 70% solution are needed?
b) 100 mL of a 60% solution is to be made from mixing a 40% solution with a 70% solution. How many mL of the 40% solution are needed? How many mL of the 70% solution are needed?
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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Transcribed Image Text:b) 100 mL of a 60% solution is to be made from mixing a 40% solution with a 70%
solution. How many mL of the 40% solution are needed? How many mL of the 70%
solution are needed?
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