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Tanya
2 months ago
13

E saca una bola de billar al azar de una caja que contiene 15 bolas de billar numeradas del 1 al 15 y se registra el número obte

nido con la letra "n". Encuentra la probabilidad de que el número obtenido "n" de la bola de billar sacada de la caja sea mayor a 10 y "n" sea par.
Mathematics
1 answer:
Zina [12.3K]2 months ago
5 0

Respuesta:

P = 2/7 = 0.2857 o 28.57%

Explicación paso a paso:

En primer lugar, sabemos que hay 15 bolas y necesitamos identificar cuáles son pares y superiores a 10.

Por lo tanto, debemos calcular inicialmente la probabilidad de que el número obtenido sea par.

Los números pares son 2, 4, 6, 8, 10, 12, 14

Contamos 7 números de 15 ---> P(B) = 7/15

De esos números, solo dos son mayores a 10, que son 12 y 14, así que: P(A|B) = 2/15

Para encontrar la probabilidad de obtener un número par mayor que 10:

P(A/B) = P(A|B) / P(B)

P(A/B) = 2/15 / 7/15 = 2/7 = 0.2857

Para calcular el porcentaje: 0.2857 * 100 = 28.57%.

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What is 3.242424 as a mixed number
Zina [12379]

Response:

Detailed explanation:

The final result is 3 /8/33.

step by step breakdown

Initially, we write:

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¯¯¯¯

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After that, we will multiply each side by

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100

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100

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−

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3

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(

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−

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99

x

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(

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+

(

0

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−

0

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)

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321

+

0

99

x

=

321

99

x

99

=

321

99

99

x

99

=

3

×

107

3

×

33

x

=

3

×

107

3

×

33

x

=

107

33

Next, we convert this improper fraction to a mixed numeral:

x

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107

33

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99

+

8

33

=

99

33

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8

33

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8

33

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3

8

33

3

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6 0
2 months ago
Read 2 more answers
Bill buys and sells laptops. Last month Bill bought 50 laptops. He paid £400 for each laptop. He sold 40 of these laptops at a p
PIT_PIT [12445]

Answer:

Yes, Bill surpassed his target by £2,200.

Step-by-step explanation:

The cost for the laptops totals = 50 x 400

= 20,000

He sold 40 laptops with a profit margin of 30%

Calculating that gives (40 x 400) x 1.30

= 20,800

He sold 10 laptops with a profit of 15%

Calculating that gives (15 x 400) x 1.15

= 6900

Thus, the overall sales revenue totals

= 20800 + 6900 = 27,700

7 0
1 month ago
Which function has a simplified base of 4RootIndex 3 StartRoot 4 EndRoot? f(x) = 2(RootIndex 3 StartRoot 16 EndRoot) Superscript
tester [12383]

Response:

  f(x)=4\sqrt[3]{16}^{2x}

Detailed explanation:

You're likely in search of a function with a base that can be simplified to...

  4\sqrt[3]{4}\approx 6.3496

The functions you seem to be considering appear to be...

  f(x)=2\sqrt[3]{16}^x\approx 2\cdot2.5198^x\\\\f(x)=2\sqrt[3]{64}^x=2\cdot 4^x\\\\f(x)=4\sqrt[3]{16}^{2x}\approx 4\cdot 6.3496^x\ \leftarrow\text{ this one}\\\\f(x)=4\sqrt[3]{64}^{2x}=4\cdot 16^x

It looks like the third option is the one that fits your requirements.

9 0
2 months ago
Read 2 more answers
The ratio of the loudness of lala's earphones to the loudness of polina's earphones to the loudness of goffy's earphones is 6:5:
PIT_PIT [12445]
Let:
Lala represented as l
Polina represented as P
Goffy represented as G
The ratio for them is 6:5:3
Given that Polina's loudness measures 420 decibels, the total loudness can be computed as follows:
Total ratio=6+5+3=14
Thus, total loudness will be:
14/5×420
=1,176 decibels 
3 0
2 months ago
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