Identify relevant information, ignore distractors, and choose an appropriate operation or representation for a contextual problem.
Solve while filtering out distractors
Problem
Fundraiser facts are A, student tickets cost \(\$6\); B, adult tickets cost \(\$9\); C, Maya buys \(3\) student and \(2\) adult tickets; D, \(180\) people attended last year. Calculate Maya's ticket total and classify the facts as relevant or irrelevant.
Big Picture
What this problem is really about
Maya's total depends on the quantity and unit price for each ticket category. Keep the student price, adult price, and her two purchase counts; calculate a subtotal for each category and add them. Last year's attendance does not change any price or quantity in Maya's purchase, so it stays outside both the model and the relevant-fact set.
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