Ask question

Ask question

All categories

2 years ago

10

How do you change 2.5 into a fraction a decimal to a fraction?

2 answers:

antiseptic1488 [7]2 years ago

8 0

You put it over it’s number place so since .5 is in the tenths place you put it over 10
So it would be 2 5/10 after simplifying you get 2 1/2

nataly862011 [7]2 years ago

8 0

Hmm, this is a breddy simple one, I'll use your provided number as an example.
$2.5$
you immediately can separate the whole numbers to make for 0.5, which is five tenths, or 5/10, which can be simplified to one half, and if you want a mixed number you stop there, giving you
$2 \frac{1}{2}$
but you can multiply your whole number by the denominator (bottom part), and recieve
$\frac{5}{2}$
these two are identical numbers, just written differently

hopefully I helped :DDDD

You might be interested in

In order to estimate the difference between the average hourly wages of employees of two branches of a department store, the fol

Julli [10]

Answer:

$0.071,1.928$

Step-by-step explanation:

Downtown Store North Mall Store

Sample size n 25 20

Sample mean $\bar{x}$ $9 $8

Sample standard deviation s $2 $1

$n_1=25\\n_2=20$

$\bar{x_1}=9\\ \bar{x_2}=8$

$s_1=2\\s_2=1$

$x_1-x_2=9-8=1$

Standard error of difference of means = $\sqrt{\frac{s_1^2}{n_1}+\frac{s_2^2}{n_2}}$

Standard error of difference of means = $\sqrt{\frac{2^2}{25}+\frac{1^2}{20}}$

Standard error of difference of means = $0.458$

Degree of freedom = $\frac{\sqrt{(\frac{s_1^2}{n_1}+\frac{s_2^2}{n_2}})^2}{\frac{(\frac{s_1^2}{n_1})^2}{n_1-1}+\frac{(\frac{s_2^2}{n_2})^2}{n_2-1}}$

Degree of freedom = $\frac{\sqrt{(\frac{2^2}{25}+\frac{1^2}{20}})^2}{\frac{(\frac{2^2}{25})^2}{25-1}+\frac{(\frac{1^2}{20})^2}{20-1}}$

Degree of freedom =36

So, z value at 95% confidence interval and 36 degree of freedom = 2.0280

Confidence interval = $(x_1-x_2)-z \times SE(x_1-x_2),(x_1-x_2)+z \times SE(x_1-x_2)$

Confidence interval = $1-(2.0280)\times 0.458,1+(2.0280)\times 0.458$

Confidence interval = $0.071,1.928$

Hence Option A is true

Confidence interval is $0.071,1.928$

4 0

2 years ago

Please answer the question carefully and completely.

LiRa [457]

He has 21 classmates, you know this by, taking 17.5 and dividing it by the 5/6. This leading to get you 21.

7 0

3 years ago

Complete the table for the equation Y=2x+3

DENIUS [597]

Hope it helps.

Don't forget to click the Brainliest button and if you have any query, feel free to ask in the comment section.

7 0

2 years ago

Which polynomial can be factored using the binomial theorem?

Galina-37 [17]

Answer:

Step-by-step explanation:

I think the one you want is the last one, but I've never called it that.

21x^2 + 147x + x^3 + 343

x^3 + 343 is a cubic binomial. It factors into (x + 7) (x^2 - 7x + 49)

21x(x + 7) + (x + 7)(x^2 - 7x + 49)

(x + 7) [ 21x - 7x + x^2 + 49)

(x + 7) [x^2 + 14x + 49]

(x + 7) ( x+7)^2

(x + 7)^3

It's the only answer that does factor. There must be a simpler way of doing it, but this will give you the right answer.

4 0

2 years ago

The rain caused the river to rise a total of 6 2/3 inches. The river was rising at an average of 2/3 of an inch each hour. How m

Rzqust [24]

= 6 2/3 / 2/3
= 20/3 / 2/3
= 20/3 x 3/2
= 60/6
=10

It rained for 10 hours.

4 0

3 years ago