All categories

3 years ago

What is 7/25 in decimal form

Mathematics

1 answer:

r-ruslan [8.4K]3 years ago

6 0

7/25 = 7× 4/25 × 4
<span>= 28/100
= 0.28</span>

You might be interested in

Riley bought 2 1/2 dozen donuts to bring to the office. since there are 12 donuts in a dozen, how many donuts did riley buy?

Elena L [17]

Riley bought 30 donuts to bring to the office

7 0

2 years ago

Which of the following is true?

den301095 [7]

Answer:

0.3073> 0.3037

Step-by-step explanation:

how can i explain more than 20 characters duh?

4 0

3 years ago

Read 2 more answers

Help find the inequalities of these problems! Plz & thank you!!

mariarad [96]

Answer:yes imStep-by-step explanation:

5 0

3 years ago

When solving negative -1/3.(x − 15) = −4, what is the correct sequence of operations

FrozenT [24]

Answer:

x=27

Step-by-step explanation:

i would give you the steps but honestly, im tired of giving 20 steps for every problem i answer.

5 0

3 years ago

Required information An article presents a new method for timing traffic signals in heavily traveled intersections. The effectiv

Natasha2012 [34]

Answer:

$652.6-2.01\frac{311.7}{\sqrt{50}}=563.997$

$652.6+2.01\frac{311.7}{\sqrt{50}}=741.203$

So on this case the 95% confidence interval would be given by (563.997;741.203)

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

$\bar X=652.6$ represent the sample mean for the sample

$\mu$ population mean (variable of interest)

s=311.7 represent the sample standard deviation

n=50 represent the sample size

Soltuion to the problem

The confidence interval for the mean is given by the following formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

In order to calculate the critical value $t_{\alpha/2}$ we need to find first the degrees of freedom, given by:

$df=n-1=50-1=49$

Since the Confidence is 0.95 or 95%, the value of $\alpha=0.05$ and $\alpha/2 =0.025$ , and we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-T.INV(0.025,49)".And we see that $t_{\alpha/2}=2.01$

Now we have everything in order to replace into formula (1):

$652.6-2.01\frac{311.7}{\sqrt{50}}=563.997$

$652.6+2.01\frac{311.7}{\sqrt{50}}=741.203$

So on this case the 95% confidence interval would be given by (563.997;741.203)

6 0

3 years ago