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Scrat [10]
3 years ago
13

Including a 7% sales tax, an inn charges $167.99 per night. Find the inn's nightly cost before tax is added.

Mathematics
2 answers:
larisa86 [58]3 years ago
8 0

Answer:

$167.99 per night (about 179.75 with tax) hope this helps

Step-by-step explanation:

- Zombie

adell [148]3 years ago
5 0

Answer:

$156.23

Step-by-step explanation:

Discount = Original Price x Discount %/100

Discount = 167.99 × 7/100

Discount = 167.99 x 0.07

You save = $11.76

Final Price = Original Price - Discount

Final Price = 167.99 - 11.7593

Final Price = $156.23

Info from copy and paste : https://www.percent-off.com/_7_percent-

off_167.99_

Please mark Brainlist!

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g A sample of 3 items is chosen at random from a box containing 20 items, out of which 4 are defective. Let X be the number of d
professor190 [17]

Answer:

The variance and standard deviation of <em>X</em> are 0.48 and 0.693 respectively.

The variance and standard deviation of (20 - <em>X</em>) are 0.48 and 0.693 respectively.

Step-by-step explanation:

The variable <em>X</em> is defined as, <em>X</em> = number of defective items in the sample.

In a sample of 20 items there are 4 defective items.

The probability of selecting a defective item is:

P (X)=\frac{4}{20}=0.20

A random sample of <em>n</em> = 3 items are selected at random.

The random variable <em>X</em> follows a Binomial distribution with parameters <em>n</em> = 3 and <em>p </em>= 0.20.

The variance of a Binomial distribution is:

V(X)=np(1-p)

Compute the variance of <em>X</em> as follows:

V(X)=np(1-p)=3\times0.20\times(1-0.20)=0.48

Compute the standard deviation (σ (X)) as follows:

\sigma (X)=\sqrt{V(X)}=\sqrt{0.48}=0.693

Thus, the variance and standard deviation of <em>X</em> are 0.48 and 0.693 respectively.

Now compute the variance of (20 - X) as follows:

V(20-X)=V(20)+V(X)-2Cov(20,X)=0+0.48-0=0.48

Compute the standard deviation of (20 - X) as follows:

\sigma (20-X)=\sqrt{V(20-X)} =\sqrt{0.48}0.693

Thus, the variance and standard deviation of (20 - <em>X</em>) are 0.48 and 0.693 respectively.

3 0
3 years ago
PLZZZZZZZZZZZ HELP MEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE!!!!
Digiron [165]
The answer is 51 liters.

Since they have a direct relationship, set up a direct proportion.
17/476=x/1428
476x3 is 1428 so
17x3=51
3 0
3 years ago
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Answer:

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Step-by-step explanation:

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3(2c - 8) - 10c > 0 ← distribute and simplify left side

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Divide both sides by - 4, reversing the inequality symbol as a consequence of dividing by a negative quantity.

c < - 6

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