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statuscvo [17]
4 years ago
9

An adult elephant eats about 300 pounds of food each day. Write an expression to represent the number of pounds of food a herd o

f 12 elephants eat in 5 days?
Mathematics
2 answers:
natita [175]4 years ago
4 0

For this case, the first thing we must do is define variables.

We have then:

x: number of days

y: number of total pounds.

For 12 elephants, we have the expression is:

y = (12) * (300) * x\\y = 3600x

Then, for the given number of days, we have x = 5.

Substituting the value of x we have:

y = (3600) (5)

Answer:

an expression to represent the number of pounds of food a herd of 12 elephants eat in 5 days is:

y = (3600) (5)

Katarina [22]4 years ago
3 0
The find the answer for this particular question you would you would multiply 12 by 300 which is 3600, and you would then multiply that by 5 which is 18000
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Answer:

t=\frac{13.88-13.2}{\frac{3.14}{\sqrt{44}}}=1.436    

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Information given

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s=3.14 represent the sample standard deviation

n=44 sample size  

\mu_o =13.2 represent the value that we want to test

\alpha=0.05 represent the significance level

t would represent the statistic (variable of interest)  

p_v represent the p value for the test

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We want to conduct a hypothesis in order to check if the true mean has increased from 2008 , and the system of hypothesi are:  

Null hypothesis:\mu \leq 13.2  

Alternative hypothesis:\mu > 13.2  

The statistic for this case is:

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

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Replacing the info given we got:

t=\frac{13.88-13.2}{\frac{3.14}{\sqrt{44}}}=1.436    

P-value

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Decision

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