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marshall27 [118]
2 years ago
14

What is 4 3/12 - r= 3 6/12

Mathematics
1 answer:
rjkz [21]2 years ago
6 0
You do like terms 4 3/12 - 3 6/12 = 3/4.
Answer: r = 3/4.
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An amount of $21,000 is borrowed for 15 years at 7.75% Interest, compounded annually. If the loan is paid in full at the end of
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Answer:

A=64340 dollars

Step-by-step explanation:

A=p(1+r)^t     p principal, t= time period, r is the rate

A=21000(1+0.0775)^15= 64339.61

A=64340 dollars

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A company is paying a local radio station to run its commercials. The cost for running commercials is a one-time campaign fee an
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(23.01) In a randomized comparative experiment on the effect of dietary calcium on blood pressure, researchers divided 58 health
Paul [167]

Answer:

113.7-2.154\frac{9.1}{\sqrt{29}}=110.06    

113.7+2.154\frac{9.1}{\sqrt{29}}=117.34    

And the 96% confidence is given by (110.06; 117.34)

Step-by-step explanation:

Information given

\bar X=113.7 represent the sample mean

\mu population mean (variable of interest)

s=9.1 represent the sample standard deviation

n=29 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=29-1=28

The Confidence is 0.96 or 96%, the significance is \alpha=0.04 and \alpha/2 =0.02, and the critical value would be t_{\alpha/2}=2.154

Replacing the info we got:

113.7-2.154\frac{9.1}{\sqrt{29}}=110.06    

113.7+2.154\frac{9.1}{\sqrt{29}}=117.34    

And the 96% confidence is given by (110.06; 117.34)

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3 years ago
Amir can run 15 kilometers in one hour. How many kilometers can Amir run per minute?
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Amir can run 0.25 kilometers per minute.
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