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lisabon 2012 [21]
3 years ago
12

Como se resuelve el problema que dice " Iara leyó una novela de 540 páginas en tres semanas. La segunda semana leyó el triple qu

e la primera semana y la tercera semana el quíntuplo de la primera semana menos 108 ¿ Cuántas páginas leyó en cada semana?
Mathematics
1 answer:
Vladimir79 [104]3 years ago
3 0

Answer:

72, 216 , 252

Step-by-step explanation:

Deje que lo que ella leyó inicialmente sea x páginas.

La segunda semana leyó 3 veces esto = 3 * x = 3x.

La tercera semana leyó 5 veces la primera semana menos 108 = 5x-108.

Así que agreguemos todos juntos para obtener x. 3x + x + 5x-108 = 540.

9x = 540 + 108 9x = 648 x = 648/9 = 72 páginas.

Leyó 72 páginas la primera semana.

Ella leyó 3 * 72 en la segunda semana = 216 páginas En la tercera semana leyó 5 (72) -108 = 360-108 = 252 páginas

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