Question 885802
Nancy mixed 14mL of a salt solution with 13mL of a 38% salt solution, to make a 30% salt solution. Find the percent salt concentration of the first solution.
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let x=percent salt concentration of the first solution
amt of salt in separate solutions=amount of salt in mixture
x%*14+38%*13=30%(14+13)
14x+4.94=8.1
14x=8.1-4.94=3.16
x=3.16/14
x≈0.2257
percent salt concentration of the first solution≈22.57%