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natita [175]
3 years ago
7

Plz help!!!!!!!!Solve for y3y=c​

Mathematics
2 answers:
Westkost [7]3 years ago
8 0

Answer:

y = 1/3c

Step-by-step explanation:

3y = c

/3 /3

y = 1/3c

Hope this helps and answers your question! =)

Natali [406]3 years ago
4 0

Answer:

y = 1/3c

Step-by-step explanation:

3y = c

/3 /3

y = 1/3c

Hope this helps and answers your question! =)

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10 is 50% of what number?
svet-max [94.6K]

Answer:

20

Step-by-step explanation:

Half (50%) of 20 is 10

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3 years ago
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The number of entrees purchased in a single order at a Noodles & Company restaurant has had an historical average of 1.7 ent
SOVA2 [1]

Answer:

t=\frac{2.1-1.7}{\frac{1.01}{\sqrt{48}}}=2.744    

p_v =P(t_{(47)}>2.744)=0.0043  

If we compare the p value and the significance level given \alpha=0.02 we see that p_v so we can conclude that we have enough evidence to reject the null hypothesis, and we can conclude that the true mean is higher than 1,7 entrees per order at 2% of signficance.  

Step-by-step explanation:

Data given and notation  

\bar X=2.1 represent the mean

s=1.01 represent the sample standard deviation

n=48 sample size  

\mu_o =1.7 represent the value that we want to test

\alpha=0.02 represent the significance level for the hypothesis test.  

t would represent the statistic (variable of interest)  

p_v represent the p value for the test (variable of interest)  

State the null and alternative hypotheses.  

We need to conduct a hypothesis in order to check if the mean is higher than 1.7, the system of hypothesis would be:  

Null hypothesis:\mu \leq 1.7  

Alternative hypothesis:\mu > 1.7  

If we analyze the size for the sample is > 30 but we don't know the population deviation so is better apply a t test to compare the actual mean to the reference value, and the statistic is given by:  

t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}  (1)  

t-test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".  

Calculate the statistic

We can replace in formula (1) the info given like this:  

t=\frac{2.1-1.7}{\frac{1.01}{\sqrt{48}}}=2.744    

P-value

The first step is calculate the degrees of freedom, on this case:  

df=n-1=48-1=47  

Since is a one side test the p value would be:  

p_v =P(t_{(47)}>2.744)=0.0043  

Conclusion  

If we compare the p value and the significance level given \alpha=0.02 we see that p_v so we can conclude that we have enough evidence to reject the null hypothesis, and we can conclude that the true mean is higher than 1,7 entrees per order at 2% of signficance.  

4 0
3 years ago
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Which is the better buy on cookies 98 grams for $5.67 or $127 grams for $7.03 will mark brainiest
Sergio039 [100]
It is cheeper to buy 127g of cookies for 7.03$. If you divide the cookie price by the G(cookies) you can see what price is higher. 
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3 years ago
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Pls help if u can 6thgrade math
motikmotik

Answer:

Greatest number: 9

Least number: 2

Range: 7

Step-by-step explanation:

From smallest to largest, the numbers are: 2, 3, 6, 8, 9. The largest (greatest) is 9 and the least (smallest) is 2. The range is 9-2=7.

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Somebody please help and explain it.
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Explanation is in the file

tinyurl.com/wpazsebu

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