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bulgar [2K]
2 years ago
15

What does 3/m = 6/7 equals​

Mathematics
2 answers:
katrin [286]2 years ago
7 0

Answer:

7/2 = m

Step-by-step explanation:

We can use cross products to solve

3       6

--- = ------

m     7

3*7 = 6*m

Divide each side by 6

21/6 = 6m/6

7/2 = m

yanalaym [24]2 years ago
6 0

The correct answer is 7/2.

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Multiplying and Dividing Rational Numbers
Dafna11 [192]

Answer:

the answer is  9.9

Step-by-step explanation:

4 0
3 years ago
According to a polling​ organization, 24% of adults in a large region consider themselves to be liberal. A survey asked 200 resp
Varvara68 [4.7K]

Answer:

z=\frac{0.375 -0.24}{\sqrt{\frac{0.24(1-0.24)}{200}}}=4.47  

Now we can calculate the p value based on the alternative hypothesis with this probability:

p_v =P(z>4.47)=0.00000391  

The p value is very low compared to the significance level of \alpha=0.05 then we can reject the null hypothesis and we can conclude that the true proportion of people liberal is higher than 0.24

Step-by-step explanation:

Information given

n=200 represent the random sample taken

X=75 represent the number of people Liberal

\hat p=\frac{75}{200}=0.375 estimated proportion of people liberal

p_o=0.24 is the value that we want to test

z would represent the statistic

p_v represent the p value

Hypothesis to test

We want to verify if the true proportion of adults liberal is higher than 0.24:

Null hypothesis:p \leq 0.24  

Alternative hypothesis:p > 0.24  

The statistic is given by:

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

Replacing the info given we got:

z=\frac{0.375 -0.24}{\sqrt{\frac{0.24(1-0.24)}{200}}}=4.47  

Now we can calculate the p value based on the alternative hypothesis with this probability:

p_v =P(z>4.47)=0.00000391  

The p value is very low compared to the significance level of \alpha=0.05 then we can reject the null hypothesis and we can conclude that the true proportion of people liberal is higher than 0.24

6 0
3 years ago
I need help on this what's the answer for it 2/7 + 2/3 =
slava [35]
20/21 is the answer to your problem.

3 0
3 years ago
Read 2 more answers
Can someone solve what is n/n^3
emmasim [6.3K]

Answer:

Alex = No B.

Step-by-step explanation:

1) Use Quotient Rule: \frac{x^{a} }{x^{b} } =x^{a-b}

n^{1-3}

2) Simplify 1 - 3 = 2

n^{-2}

3) Use Negative Power Rule: x^{-a} =\frac{1}{x^{a} }

\frac{1}{n^{2} }

3 0
2 years ago
28.
Artyom0805 [142]

Answer:

50

Step-by-step explanation:

30% * n = 15

Change to decimal form

.30 *n = 15

Divide each side by .30

.30n/.30 = 15/.30

n =50

The number is 50

7 0
3 years ago
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