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Worksheet: Using Rational Equations to Solve Real World Problems


A container holds 100 mL of a solution that is 25 mL acid. If mL of a solution that is acid is added, the concentration of the resulting solution will be . Express in terms of and hence determine the amount of acid solution that needs to be added for the resulting solution to have a concentration of .

  • A, 50 mL
  • B, 23 mL
  • C, 250 mL
  • D, 750 mL
  • E, 68 mL