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ser-zykov [4K]
3 years ago
9

Solve asap: 3(2y+10)=54 Within 10 mins pls 8th grade

Mathematics
2 answers:
inna [77]3 years ago
7 0

Answer:

y = 4

Step-by-step explanation:

6y + 30 = 54

subtract 30 from each side

6y = 24

divide each side by 6

y = 4

wariber [46]3 years ago
6 0

Answer:

y=4

Step-by-step explanation:

3(2y+10)=54

6y+30=54

-30       -30

6y=24

/6   /6

y=4

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Answer:

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And the best conclusion would be:

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Step-by-step explanation:

Data given and notation  

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s=0.3 represent the sample standard deviation

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\mu_o =3.1 represent the value that we want to test  

\alpha 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)  

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Alternative hypothesis:\mu > 3.1  

If we analyze the size for the sample is < 30 and 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{3.25-3.1}{\frac{0.3}{\sqrt{36}}}=3  

P-value  

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

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Step-by-step explanation:

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