Math Problem Statement
Problema 1: ¿Cuántas onzas de una aleación de plata que cuesta $250 la onza debe mezclarse con 80 onzas de una aleación que cuesta $90 la onza para elaborar una mezcla que cueste $140 la onza?
Solution
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Math Problem Analysis
Mathematical Concepts
Algebra
Linear Equations
Cost Mixing Problems
Formulas
Total cost = (cost of first alloy * quantity of first alloy) + (cost of second alloy * quantity of second alloy)
Total quantity = sum of both alloys
Theorems
Conservation of cost in mixtures
Suitable Grade Level
Grades 10-12