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goldenfox [79]
2 years ago
13

A sports shop buys tents for $260 less 25% for buying more than 30 tents. The store operates on a markup of 30% of the sale pric

e and advertises that all items are sold at a discount of 20% of the regular price. What is the regular price of the tents?
Mathematics
1 answer:
ohaa [14]2 years ago
7 0

Answer: $253.50

Step-by-step explanation:

Markup = 30% of sale price

Store purchase price = (100% - 25%) × 260

Store purchase price = 75% × 260

Store purchase price = 0.75 × 260

Store purchase price = $195

Regular selling price = markup × purchase price

Markup = 30% of purchase price (100+30)%

Regular selling price :

1.30 × $195 = $253.50

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It is known that the population variance equals 484. With a .95 probability, the sample size that needs to be taken to estimate
Hitman42 [59]

Answer:

The minimum sample size is n = 75 so that the desired margin of error is 5 or less.                          

Step-by-step explanation:

We are given the following in the question:

Population variance = 484

Standard deviation =

\sigma^2 = 484\\\sigma =\sqrt{484} = 22

Confidence level = 0.95

Significance level = 0.05

Margin of error = 5

Formula:

Margin of error =

E = z\times \dfrac{\sigma}{\sqrt{n}}\\\\n = (\dfrac{z\times \sigma}{E})^2

z_{critical}\text{ at}~\alpha_{0.05} = 1.96

Putting values, we get

E\leq 5\\\\1.96\times \dfrac{22}{\sqrt{n}} \leq 5\\\\\sqrt{n} \geq 1.96\times \dfrac{22}{5}\\\\n \geq (1.96\times \dfrac{22}{5})^2\\\\n \geq 74.373

Thus, the minimum sample size is n = 75 so that the desired margin of error is 5 or less.

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2 years ago
Passing through (5, -4) and parallel to the line whose equation is y=-2x+3;<br> point-slope form
Marina CMI [18]
The answer is y=-2x+6

8 0
2 years ago
In Δ ABC, the sum of the measures of ∠A and ∠B is 47°. what is the measure of ∠C?
Tanya [424]
To determine the measure of angle C. You would solve the equation for X. X+47=180. X= 180-47. X= 133. The measure of angle C is 133 degrees.
8 0
3 years ago
A quadrilateral has two consecutive angles that measure 90 each which if the following quadrilaterals could have this property
Lilit [14]

Answer

Rectangle or Square

Why

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3 0
3 years ago
My question has been deleted I made a mistake
zysi [14]
Retype your question that way we can help answer
7 0
3 years ago
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