Mathematics, 05.03.2021 22:10 cait0820
En un examen tipo test de 30 preguntas, Ariadna ha obtenido 54 puntos. Las preguntas contestadas correctamente valen 3 puntos, mientras que las no contestadas o erróneas descuentan 1 punto.
¿Cuántas preguntas del test ha contestado correctamente Ariadna? Plantea y resuelve un sistema de ecuaciones para solucionar el problema.
18 preguntas.
19 preguntas.
20 preguntas.
21 preguntas.
Answers: 2
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Acompany charges $0.10 for each letter engraved. bobby plans to spend no more than $5.00 on the engraving on a jewelry box. write and solve an inequality to find the maximum number of letters he can have engraved.
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En un examen tipo test de 30 preguntas, Ariadna ha obtenido 54 puntos. Las preguntas contestadas cor...
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