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Liula [17]
3 years ago
9

Why is determining food cost percentage important?

Mathematics
2 answers:
Studentka2010 [4]3 years ago
8 0

Answer:

Food cost determines a restaurant's profitability.

Step-by-step explanation:

If you have any questions feel free to ask in the comments - Mark

Also when you have the chance please mark me brainliest.

Allushta [10]3 years ago
7 0

Answer:

it is important because finding the percentage in food cost can help figure out the tax price.  (this is just a simple little answer, this might be wrong)

:) hope this helped a bit

Step-by-step explanation:

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Algebraic expression the sum of 12 and k​
USPshnik [31]
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An investigator thinks that people under the age of forty have vocabularies that are different than those of people over sixty y
Kay [80]

Answer:

t=\frac{(14-20)-0}{\sqrt{\frac{5^2}{31}+\frac{6^2}{31}}}}=-4.28  

Now we can calculate the p value with the following probability:

p_v =2*P(t_{60}  

The p value is a very low value so then we have enough evidence to reject the null hypothesis and we can conclude that people under the age of forty have vocabularies that are different than those of people over sixty years of age.

Step-by-step explanation:

Information given

\bar X_{1}=14 represent the mean for sample 1 (younger)

\bar X_{2}=20 represent the mean for sample 2 (older)  

s_{1}=5 represent the sample standard deviation for 1  

s_{f}=6 represent the sample standard deviation for 2  

n_{1}=31 sample size for the group 2  

n_{2}=31 sample size for the group 2  

t would represent the statistic

System of hypothesis

We want to test if  that people under the age of forty have vocabularies that are different than those of people over sixty years of age, the system of hypothesis are:

Null hypothesis:\mu_{1}-\mu_{2}=0  

Alternative hypothesis:\mu_{1} - \mu_{2}\neq 0  

The statistic is given by:

t=\frac{(\bar X_{1}-\bar X_{2})-\Delta}{\sqrt{\frac{\sigma^2_{1}}{n_{1}}+\frac{\sigma^2_{2}}{n_{2}}}} (1)  

And the degrees of freedom are given by df=n_1 +n_2 -2=31+31-2=60  

Replacing the info given we got:

t=\frac{(14-20)-0}{\sqrt{\frac{5^2}{31}+\frac{6^2}{31}}}}=-4.28  

Now we can calculate the p value with the following probability:

p_v =2*P(t_{60}  

The p value is a very low value so then we have enough evidence to reject the null hypothesis and we can conclude that people under the age of forty have vocabularies that are different than those of people over sixty years of age.

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How to solve system of equation by graphing
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Answer:

Step-by-step explanation: use the form y=mx+b

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Answer:

A

Step-by-step explanation:

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The leftmost digits of two numbers are 8 and 3. Can you tell which number is greater? Explain
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The one with the 8 in the leftmost digit is greater because a number that has an 8 in the leftmost digit is larger number than one with a 3 in the leftmost digit place. so the one eith the 8 woukd be greater.
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