Question 14 • GA-Advanced Algebra: Concepts and Connections CR
Let A, B, and C be the fractions of the 100 mL batch made from each solution. The target percentages require 0.10A + 0.20B + 0.40C = 0.30 and 0.15A + 0.20B + 0.10C = 0.15, with A + B + C = 1. Solving these equations gives A = 0, so Mr. Allen needs 0 mL of solution A. In fact, equal amounts of B and C give 30% vinegar and 15% lemon juice.
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