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Anna [14]
3 years ago
11

Convert 8.132132132... to a rational expression in the form of a fraction

Mathematics
1 answer:
kow [346]3 years ago
6 0

Let <em>x</em> = 8.132132132... .

Then 1000<em>x</em> = 8132.132132132... .

Subtracting <em>x</em> from 1000<em>x</em> eliminates the fractional part, leaving you

999<em>x</em> = 8132 - 8 = 8124

Then

<em>x</em> = 8124/999 = 2708/333

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2X+4=20+5X<br>A)1/2 B)-1/2 C)2 D)-2​
Nookie1986 [14]

Answer:

It seems that your options aren't correct as the right answer is -5.3333... (recurring)

Step-by-step explanation:

1)  2x + 4 = 20 + 5x   (subtract by the smallest unknown)

  -2x                  -2x

2)  4        = 20 + 3x

    -20      -20    (now subtract each side by 20 as we want to leave the unknown on one side and another number on the other side.

3) -16       = 3x   (Divide each side by 3)

   ÷3        = ÷3

4) -5.33333... = x

<h3>Now we have found x but if you're unsure you can substitute to see if your answer is correct.</h3><h3>2 x -5.3333 + 4 = -6.6666</h3><h3>20 + 5 x -5.3333= -6.6665</h3><h3>Our answer is correct! (When answers are rounded, it is equal to the same thing).</h3>
7 0
3 years ago
Of the town's 42 firefighters, 16 volunteered for the special rescue team. Express the portion who did not volunteer.
Doss [256]
42 firefighters in total.

16 volunteered for the special rescue team.

n + 16 = 42

or it could be this way:

42 - 16 = n
8 0
3 years ago
Un curso esta formado por 12 mujeres y 15 hombres ¿cual es la probabilidad de que las personas en el cargo de presidente y visep
riadik2000 [5.3K]

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

4 0
2 years ago
Please Help! Answer Number 4
faltersainse [42]

Answer:

1485

Step-by-step explanation:

sorry if im wrong

8 0
2 years ago
Which statement best explains how to find the area of the kite?
eimsori [14]

I think it is a D I'm not really sure

3 0
2 years ago
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