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OverLord2011 [107]
4 years ago
11

Plz help me ;-; what is 3.41 repeating as a fraction

Mathematics
2 answers:
shtirl [24]4 years ago
6 0

Answer:

\frac{338}{99} is the answer.

Step-by-step explanation:

let x = 3.4141.....

multiplying both sides by 100 [ since it has two repeating decimals],we get

100x  341.4141...

subtracting from the first ,we get

99x = 338

so x = \frac{338}{99}

Sholpan [36]4 years ago
4 0

Remark

I'm going to assume that it is just the 0.41 that is doing the repeating. If it is not leave me a note.

Solution

The trick is to call x = 3.4141414141 ....

then multiply by 100

100 x = 341.4141414141 ............ Now write the original decimal underneath.

<u>. . . x = 3.414141414141 ......</u>...... Subtract

99 x = 338 That's all that's left. The decimal part cancels out.

x = 338 / 99 Fractional answer.

x = 3 39/99

x = 3 13/33 If this isn't one of your answers, leave me a note.

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lapo4ka [179]

Answer:

9. n=-15 , 10. f=6, sorry i can't help you more I am just tired and have to get some rest but i hope this helps

Step-by-step explanation:

9. Eight less than 1/3 a number n is -13

so -13 = 1/3n -8

then

-5 = 1/3n

multiply 3 to each side

-15 = n

10. a number f multiplied by -12.3 is -73.8

so -12.3f= -73.8

divide -12.3 on each side

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4 0
3 years ago
Find the 62nd term of the following sequence:<br> (-21, – 27, - 33, - 39,...)
iris [78.8K]

Answer:

-387

Step-by-step explanation:

First term (T1) = -21 = a

second term (t2) = - 27

common difference (d) = t2 - t1 = - 27 + 21 = - 6

Now

Tn = a + ( n - 1) d

T62 = - 21 + ( 62 - 1 ) - 6

= - 21 -366

= -387

8 0
3 years ago
The slope of a line is -1/3 , and the y-intercept is 10/3. What is the equation of the line written in general form ?
grin007 [14]
I think the equation is
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You are to take a multiple-choice exam consisting of 64 questions with 5 possible responses to each question. Suppose that you h
stepan [7]

Answer:

(a) The expected score is 12.8

(b) The standard deviation is 3.2 and variance is 10.24

Step-by-step explanation:

Consider the provided information.

You are to take a multiple-choice exam consisting of 64 questions with 5 possible responses to each question.

Here n=64 p=1/5 and q=1-1/5=4/5

Part (a)  we need to find the expected score on the exam.

Expected = np

Expected score = number of questions × P(right)

Score = 64 \times \frac{1}{5} = 12.8

Hence, the expected score is 12.8

Part (b)  Compute the variance and standard deviation of x.

Standard Deviation: \sigma =\sqrt{npq}

Now calculate the standard deviation as shown:

\sigma =\sqrt{64\times \frac{1}{5}\times \frac{4}{5}}

\sigma =\sqrt{\frac{256}{25}}

\sigma =\frac{16}{5}=3.2

Variance: \sigma^2 =npq

\sigma^2 =64\times \frac{1}{5}\times \frac{4}{5}

\sigma^2 =\frac{256}{25}

\sigma^2 =10.24

Hence, the standard deviation is 3.2 and variance is 10.24

5 0
4 years ago
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ohaa [14]

Answer:

400 divided by 5 is how you get the answer.

Step-by-step explanation:

400 / 5 = 80

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8 0
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