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Lorico [155]
3 years ago
7

A football stadium will hold 965 students. The cost for a football ticket Is $13 . If a football game is sold out, how much mone

y was spent on tickets ?
Mathematics
1 answer:
Mekhanik [1.2K]3 years ago
7 0
13×965= $12,545
each person pays $13 and 965 people come so you times them together to get the answer
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Step-by-step explanation:

Para calcular de cuántas maneras se puede seleccionar x elementos de un grupo de n elementos podemos usar la siguiente fórmula:

nCx=\frac{n!}{x!(n-x)!}

Si vas a elegir 3 personas de entre 6 matrimonios y dos miembros de la misma pareja no pueden ser elegidos, entonces podemos decir que se está eligiendo 3 matrimonios y en cada matrimonio se está eligiendo un representante.

Entonces, podemos calcular de cuántas maneras se puede escoger 3 matrimonios de los 6, así:

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Por lo tanto se puede formar el grupo de 3 personas de 160 maneras diferentes:

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