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saveliy_v [14]
3 years ago
10

What is another way to express 12/12

Mathematics
2 answers:
Readme [11.4K]3 years ago
3 0
The answer is 6/6 so does that help you today and it can also be one whole
IrinaK [193]3 years ago
3 0
12/12 means 12 twelths... If you visualise it in a circle, the 12 twelths have all been 'filled' therefore the circle is complete... This means that there is 1 circle, thus your answer would be 1
Alternative was to express 12/12 is by using any denominator but making sure that the numerator is the same, for example:
1/1
2/2
3/3
4/4
100/100
etc. Hope this helped!! (。>﹏<。)
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please help me with this :( I did the first one and I’m confused on the others I’ll mark u brainliest
Lena [83]

Answer:

second one:  -4x +6

third one: 4x - 16

fourth:   245x + 30

fifth: 81x - 21x

(last one) sixth: 1600x + 8x

( if this goes wrong then I did  something else)

3 0
3 years ago
3 pizzas for $ 16.50 what is the unit rate for one pizza
o-na [289]
The answer is 5.50$ you have to divide 16.50/ 3
8 0
3 years ago
Read 2 more answers
It took Sergio 1.5 hours to read 3 chapters of a book. If he continues reading at a constant rate and the chapters are similar i
ryzh [129]

Answer:

9 hours

Step-by-step explanation:

1 chapter ≈ .5 hour

18 x .5 = 9

8 0
3 years ago
Can teachers see how much time you spend on Delta Math?
NARA [144]

Answer:

Yes

Step-by-step explanation:

Short answer- yes.

Long answer- The Student Last Action feature allows teachers to see the last date and time that a student did something on DeltaMath. DeltaMath has several tools that help teachers manage student accounts. Once a student's account is created, a teacher can add the student to one or more classes.

7 0
2 years ago
The U.S. and many other countries have recently tightened airport security. A sociologist is interested in estimating the propor
melisa1 [442]

Answer:

0.0073 < 0.05, which means that we reject the null hypothesis and conclude that the true proportion of interest is higher than 0.7.

Step-by-step explanation:

Conduct a test to determine whether the true proportion of interest is higher than 0.7.

This means that the null hypothesis is: H_{0}: p = 0.7

And the alternate hypothesis is: H_{a}: p > 0.7

The test statistic is:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

In which X is the sample mean, \mu is the value tested at the null hypothesis, \sigma is the standard deviation and n is the size of the sample.

0.7 is tested at the null hypothesis:

This means that \mu = 0.7, \sigma = \sqrt{0.7*0.3}

The sociologist found that 375 of the 500 travelers randomly selected and interviewed indicated that the airports were safe.

This means that n = 500, X = \frac{375}{500} = 0.75

Value of the z-statistic:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

z = \frac{0.75 - 0.7}{\frac{\sqrt{0.7*0.3}}{\sqrt{350}}}

z = 2.44

P-value of the test:

Probability of z being larger than 2.44, that is, a proportion larger than 0.75.

This is, looking at the z-table, 1 subtracted by the pvalue of Z = 2.44. S

Z = 2.44 has a pvalue of 0.9927

1 - 0.9927 = 0.0073

0.0073 < 0.05, which means that we reject the null hypothesis and conclude that the true proportion of interest is higher than 0.7.

8 0
3 years ago
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