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Lubov Fominskaja [6]
3 years ago
15

Use the original price and the markdown to find the retail price. Original price: $100; Markdown: 28%. What is retail price ?​

Mathematics
1 answer:
Rasek [7]3 years ago
4 0

Answer:

$72 is the retail price

Step-by-step explanation:

100 x (100-28)/100

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Oksi-84 [34.3K]

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yes.... i need da coordinatees

Step-by-step explanation:

8 0
3 years ago
“21 less than three-fifths of a number”
Amanda [17]
3/5x-21 is the answer(I think) if not it’s 21-3/5x
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The product of a number and negative two is the same as 5 less than the half the number. What is the equation the represents thi
snow_tiger [21]

Answer:

N(-2) = \frac{n(-2)\\}{2}-5       this is also equal to n=2.5

Step-by-step explanation:

multiply both sides by 2

-4n = -2n-5

add 2n to both sides

-2n = -5

divide both sides by -2

n=2.5

3 0
3 years ago
The area of the rug is 36 1/4 square feet the rug is 8 3/4. what is the length of the rug?
loris [4]
Area=legnth times width

36 and 1/4=8 and 3/4 times width

conver to imrpoer
36 and 1/4=145/4
8 and 3/4=35/4

145/4=35/4 times x
times both sides by 4
145=35 times x
divide both sides by 35
29/7=x
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7 0
3 years ago
Suppose that an internal report submitted to the managers at a bank in Boston showed that with 95 percent confidence, the propor
Dmitry [639]

Answer:

The sample size used to compute the 95% confidence interval is 1066.

Step-by-step explanation:

The (1 - <em>α</em>)% confidence interval for population proportion is:

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

The 95% confidence interval for proportion of the bank's customers who also have accounts at one or more other banks is (0.45, 0.51).

To compute the sample size used we first need to compute the sample proportion value.

The value of sample proportion is:

\hat p=\frac{Upper\ limit+Lower\ limit}{2}=\frac{0.45+0.51}{2}=0.48

Now compute the value of margin of error as follows:

MOE=\frac{Upper\ limit-Lower\ limit}{2}=\frac{0.51-0.45}{2}=0.03

The critical value of <em>z</em> for 95% confidence level is:

z_{\alpha/2}=z_{0.05/2}=z_{0.025}=1.96

Compute the value of sample size as follows:

MOE=z_{\alpha/2}\sqrt{\frac{\hat p(1-\hat p)}{n}}\\0.03=1.96\times \sqrt{\frac{0.48(1-0.48)}{n}}\\(\frac{0.03}{1.96})^{2}=\frac{0.48(1-0.48)}{n}\\n=1065.404\\n\approx1066

Thus, the sample size used to compute the 95% confidence interval is 1066.

4 0
2 years ago
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