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SVEN [57.7K]
3 years ago
11

Josefina origanally had $550 in her checking account. After withdrawing 100$ each week, Josefina has a new balance of $50.

Mathematics
2 answers:
Amanda [17]3 years ago
8 0

W=5. She withdrew money 5 times.

ddd [48]3 years ago
6 0
$5beacuse u need to subtract
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Two functions, P and Q, are described as follows: Function P y = 5x + 3 Function Q The rate of change is 2 and the y-intercept i
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Function Q . . . . . y = 2x + 4

Function P rate of change  =  5
Function Q rate of change  =  2

The first one is  => 3 <=  more than second one.
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3 years ago
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How much money does the average professional hockey fan spend on food at a single hockey​ game? That question was posed to 10 ra
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Answer:

Now we have everything in order to replace into formula (1):

18-2.262\frac{2.75}{\sqrt{10}}=16.03    

18+2.262\frac{2.75}{\sqrt{10}}=19.97    

Step-by-step explanation:

Information given

\bar X=18 represent the sample mean

\mu population mean (variable of interest)

s=2.75 represent the sample standard deviation

n=10 represent the sample size  

Confidence interval

The confidence interval for the mean is given by the following formula:

\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}   (1)

The degrees of freedom are given by:

df=n-1=10-1=9

The Confidence is 0.90 or 90%, the significance is \alpha=0.1 and \alpha/2 =0.05, and the critical vaue would be t_{\alpha/2}=2.262

Now we have everything in order to replace into formula (1):

18-2.262\frac{2.75}{\sqrt{10}}=16.03    

18+2.262\frac{2.75}{\sqrt{10}}=19.97    

5 0
3 years ago
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Answer:

now it would be $78

4 0
3 years ago
Please I need help in all of these!
blondinia [14]
For 15 I think it’s B
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