ashleyserr0817
Answered

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De 1 280 alumnos que tiene una escuela, 1 088 salieron de excursión, ¿qué porcentaje
representa a los alumnos que faltaron a la excursión?
A) 117.65 %
B) 85%
C) 17.65 %
D) 15%

Sagot :

Usando el concepto de porcentaje, se encuentra que 15% faltaron, opcion D.

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La porcentage de una medida a sobre un total b es dada por:

[tex]P = \frac{a}{b} \times 100\%[/tex]

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En esta pregunta, tenemos que

  • Total de 1280 alumnos, o sea [tex]b = 1280[/tex].
  • 1088 salieron, entonces, 1280 - 1088 = 192 faltaron, o sea, [tex]a = 192[/tex].

La porcentaje dos que falton es de:

[tex]P = \frac{192}{1280} \times 100\% = 15\%[/tex]

O sea, la respuesta correcta es dada por opcion d.

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