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fgiga [73]
3 years ago
13

( ، Find the simple interest on 150.000 for 5years at 2%per annum

Mathematics
1 answer:
poizon [28]3 years ago
6 0

Answer:

165000

Step-by-step explanation:

simple interest

PV(1+it)

150000(1+5*.02)

=165000

if you need it then the interest earned would just be 165000-150000= 15000

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Question is in photo.<br> Thanks
lana66690 [7]

Answer:

what do you mean for this question. What do you need help on?

7 0
3 years ago
Which is the equation of the line that passes through the points (4, 3) and (6, 2)?
Andrew [12]

Answer:

answer is c hope this helps

Step-by-step explanation:

3 0
3 years ago
Your state is considering raising the legal age for consumption of alcoholic beverages to 21 years old. How large a sample size
julsineya [31]

Answer:

n=\frac{0.5(1-0.5)}{(\frac{0.01}{2.58})^2}=16641  

And rounded up we have that n=16641

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".  

The margin of error is the range of values below and above the sample statistic in a confidence interval.  

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".  

The population proportion have the following distribution

p \sim N(p,\sqrt{\frac{p(1-p)}{n}})

Solution to the problem

In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 99% of confidence, our significance level would be given by \alpha=1-0.99=0.01 and \alpha/2 =0.005. And the critical value would be given by:

z_{\alpha/2}=-2.58, t_{1-\alpha/2}=2.58

The margin of error for the proportion interval is given by this formula:  

ME=z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}    (a)  

And on this case we have that ME =\pm 0.01 and we are interested in order to find the value of n, if we solve n from equation (a) we got:  

n=\frac{\hat p (1-\hat p)}{(\frac{ME}{z})^2}   (b)  

For this case we can use as estimator for the proportion \hat p =0.5, since we don't have any other previous info. And replacing into equation (b) the values from part a we got:

n=\frac{0.5(1-0.5)}{(\frac{0.01}{2.58})^2}=16641  

And rounded up we have that n=16641

8 0
3 years ago
Each week carrie works 40 hours she spend 15% of her time at register
VLD [36.1K]
Please, share the goal of the problem.  If Carrie works 40 hours per week and spends 15% of her time at the register, how much time does she NOT spend at the register?  

Subtract 15% from 100%; the result is 85%.  Now find 85% of 40 hours:

0.85(40 hours) = 34 hours.

Please note that I invented part of this problem.  Next time, share all of the info so that someone can help you solve YOUR particular problem.
3 0
3 years ago
Gene ran 90 meters in 16.3 seconds. alma ran 90 meters in 17.2 seconds. who had the fastest time
maria [59]

Answer:

Gene ran faster

Step-by-step explanation:

The fastest time is the smallest time since they ran the same distance

gene ran 90 meters in 16.3 seconds.

alma ran 90 meters in 17.2 seconds

16.3 < 17.2

Gene ran faster

7 0
2 years ago
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