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andrew11 [14]
3 years ago
5

When it is 9:00, the hour hand on an analog clock is 270$^\circ$ ahead of the minute hand. how many minutes elapse (to three sig

nificant digits) before the minute hand next points in the same direction as the hour hand?
Mathematics
1 answer:
AnnZ [28]3 years ago
3 0
Ninety minutes. 12:00
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Answer:

P = (12/27)*(11/26) = 0.188

Step-by-step explanation:

Si todos tienen la misma probabilidad de estar en cargo de presidente y vicepresidente, entonces:

La probabilidad de que una mujer sea presidente, es igual al cociente entre el número de mujeres y el número total de personas:

p = 12/27

Ahora queremos calcular lo mismo para vicepresidente, y el cálculo es exactamente igual, con la diferencia de que en esta situación, ya hay una mujer en el cargo de presidente, entonces hay 11 mujeres que pueden ser vicepresidente, y un total de: (11 + 15 = 26 personas)

Entonces ahora la probabilidad es:

q = 11/26

La probabilidad conjunta (es decir, la probabilidad de que ambos eventos pasen) es igual al producto de las probabilidades individuales.

P = (12/27)*(11/26) = 0.188

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Hope this helps!

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