Math Problem Statement
- Un examen consta de 40 preguntas. Cada pregunta bien contestada vale 10 puntos y cada pregunta no contestada o mal resuelta descuenta 6 puntos. Si un alumno obtuvo una nota de 160 puntos. ¿Cuántas preguntas contestó bien?
Solution
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Math Problem Analysis
Mathematical Concepts
Systems of equations
Linear equations
Algebra
Formulas
System of linear equations
Theorems
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Suitable Grade Level
Grades 9-12
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