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If a class of 29 children, each of 20 children has a dog and each of 15 has a cat. How many of the children have both a

Standards. Praxis. WMASMathematical ProcessesA.8.1 Use reasoning abilities to evaluate information, perceive patterns, and identify relationships. F. Algebraic RelationshipsF.8.1 Work with algebraic expressions in a variety of ways, including using appropriate symbolism, evaluating expression

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If a class of 29 children, each of 20 children has a dog and each of 15 has a cat. How many of the children have both a

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    1. If a class of 29 children, each of 20 children has a dog and each of 15 has a cat. How many of the children have both a dog and cat? (A) None of the children necessarily has both. (B) Exactly 5 (C) Exactly 6 (D) At least 6 and at most 15 PRAXIS - WI Kaufmann Stracke Kosiak

    2. Standards Praxis WMAS Mathematical Processes A.8.1 Use reasoning abilities to evaluate information, perceive patterns, and identify relationships. F. Algebraic Relationships F.8.1 Work with algebraic expressions in a variety of ways, including using appropriate symbolism, evaluating expressions through numerical substitution, generating equivalent expressions, and adding and subtracting expressions F.8.3 Recognize, describe, and analyze functional relationships* by generalizing a rule that characterizes the pattern of change among variables. F.8.4 Use linear equations and inequalities in a variety of ways, including writing them to represent problem situations and to express generalizations, solving them by different methods, writing and evaluating formulas, using them to record and describe solution strategies.

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