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2 years ago

How to write 21/6 as a mixed number

1 answer:

5 0

Divide using long division. The whole number portion will be the number of times the denominator of the original fraction divides evenly into the numerator of the original fraction, and the fraction portion of the mixed number will be the remainder of the original fraction division over the denominator of the original fraction.

3 and 3 over 6

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What is the value of x? 20 35 60 70?

vredina [299]

No one can tell you the answer to this. You need to provide us with a equation which we can solve.

6 0

2 years ago

En una sala de teatro havian 7 filas 23 sillas cada una acaban de quitar 8 de las sillas ¿cuantas sillas quedan?

LenaWriter [7]

Answer:

Quedan 153 sillas

Step-by-step explanation:

Primero sabemos que en una sala de teatro tenían 7 filas, y en cada una de esas filas habían 23 sillas.

Entonces, originalmente, el número total de sillas es 7 veces 23:

S = 7*23 = 161

Luego sabemos que quitan 8 de esas sillas, entonces el número de sillas que quedan es la diferencia entre el número original de sillas, 161, y 8, que nos da:

S = 161 - 8 = 153

Quedan 153 sillas

6 0

2 years ago

A number c minus 7.3 is less than 6. write this word sentence as an inequality?

chubhunter [2.5K]

Answer:

c - 7.3 < 6

Step-by-step explanation:

c - 7.3 is less than 6

less than is the same as <

So c - 7.3 < 6

-Chetan K

7 0

2 years ago

Read 2 more answers

Twenty percent of all telephones of a certain type are submitted for service while under warranty. Of these, 60% can be repaired

nignag [31]

Answer:

0.0052 = 0.52% probability that exactly four will end up being replaced under warranty.

Step-by-step explanation:

For each telephone, there are only two possible outcomes. Either they are replaced under warranty, or they are not. The probability of a telephone being replaced under warranty is independent of any other telephone, which means that the binomial probability distribution is used to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

Twenty percent of all telephones of a certain type are submitted for service while under warranty. Of those, 40% are replaced.

This means that $p = 0.2*0.4 = 0.08$

Company purchases ten of these telephones.

This means that $n = 10$

What is the probability that exactly four will end up being replaced under warranty?

This is P(X = 4). So

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 4) = C_{10,4}.(0.08)^{4}.(0.92)^{6} = 0.0052$

0.0052 = 0.52% probability that exactly four will end up being replaced under warranty.

4 0

3 years ago

What are the zeros of the polynomial function? f(x)=x2−16x+48 Enter your answers in the boxes.

ioda

Answer:

$x_{1,2}=4,\ 12$

Step-by-step explanation:

Consider the polynmial function $f(x)=x^2-16x+48.$ The zeros of the polynomial function are the values of x at which f(x)=0. Solve the equation $x^2-16x+48=0:$

$D=b^2-4ac=(-16)^2-4\cdot 1\cdot 48=256-192=64=8^2,\\ \\x_{1,2}=\dfrac{-b\pm \sqrt{D}}{2a}=\dfrac{-(-16)\pm \sqrt{64}}{2\cdot 1}=\dfrac{16\pm 8}{2}=4,\ 12.$

8 0

2 years ago