Answers GA-Algebra Concepts and Connections A Solving Mixture ProblemsQuestion 11

11

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Solving Mixture Problems

Question 11 • GA-Algebra: Concepts and Connections A

What errors did the student make? Check all that apply.

Answer

A

The percent values were written incorrectly in the equation.

B

The amount of 7% solution should be written as 1 – x, not x – 1.

C

The equation as written is solved incorrectly. x ≠ 1.17.

D

x must represent the amount of the more highly concentrated solution.

E

The interpretation is incorrect. 1 liter of 2% solution is needed to make 1.17 liters of 3.5% solution.

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