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Effectus [21]
3 years ago
13

Donnesh puts $5,000 into a savings account with a 10% interest rate. How long will it take to double the initial amount?

Mathematics
1 answer:
Svet_ta [14]3 years ago
4 0

Answer:

Step-by-step explanation:

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A medical researcher says that less than 87​% of adults in a certain country think that healthy children should be required to
Lyrx [107]

Answer: It is not enough evidence to support the researcher's claim.

Step-by-step explanation:

Since we have given that

n = 500

\hat{p}=0.85

So, the hypothesis are as follows:

H_0:\hat{p}

So, the z value would be

z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}\\\\z=\dfrac{0.85-0.87}{\sqrt{\dfrac{0.87\times 0.13}{500}}}\\\\z=\dfrac{-0.02}{0.015}\\\\z=-1.33

At α = 0.05

z= -1.64

So, 1.64<-1.33

So, we accept the null hypothesis.

Hence, it is not enough evidence to support the researcher's claim.

3 0
3 years ago
If your grade is 68.27 and you get a 15 out of 15 on your test whats your grade now
mixer [17]

Answer:

84

Step-by-step explanation:

68 + 100 = 168

168/2 = 84

8 0
3 years ago
Find. What part of 40 is 16?
levacccp [35]

Answer:

40%

Step-by-step explanation:

because convert the fraction 16/40 and the answer is 40%

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8 0
3 years ago
What is the slope of line B?
N76 [4]

Answer:

3. do rise over run to get 3/1 and that simplifies to 3!

Step-by-step explanation:

4 0
3 years ago
Oscar has received a $4,000 gift and is looking for a bank to start a savings account. Which option would be the best for him at
Brut [27]

Here is the complete question

A nominal interest rate of 5%

A real interest rate of 5%

A real interest rate of 3%

A nominal interest rate of 3%

Answer:

A real interest rate of 5%

Step-by-step explanation:

A real interest rate of 5% is the best option for oscar. The nominal rate of interest is a type of interest rate that shows the increase in in percentage of money without the depreciation discount that is usually caused by inflation or the payment of tax.

The real rate of interest shows the real increase in the money that has been paid for an investment. This is after inflation has been discounted and all forms of taxes have been paid.

So oscar should invest his $4000 on a savings account whose real interest rate is 5% per year

6 0
3 years ago
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