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Galina-37 [17]
3 years ago
9

The candle company is having its semiannual sale. All items are 40 percent off. If the original price of a candle basket is $120

, what is the sale price
A. $36
B. $48
C. $72
D.$84
Please i need answers.
Mathematics
2 answers:
Brrunno [24]3 years ago
7 0

Answer:

C. $72

Step-by-step explanation:

In order to know the answer, you have to know <em>how much is 40% of $120</em>. You can get the answer by using the <em>multiplication operation.</em>

Let's solve.

Let x be the discount of the candle basket.

x = 40% x $120

x = 0.40 x 120

x = $48

Next is to subtract the discount from the original price of the candle basket.

$120 - $48 = $72

<u>The sale price of the candle basket is $72.</u>

Stells [14]3 years ago
6 0

Answer:

It's C

Step-by-step explanation:

120 x 0.4 = 48

120 - 48 = 72

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Using the normal distribution, there is a 0.4826 = 48.26% probability that the sample mean is between 15 and 16 grams per day.

<h3>Normal Probability Distribution</h3>

The z-score of a measure X of a normally distributed variable with mean \mu and standard deviation \sigma is given by:

Z = \frac{X - \mu}{\sigma}

  • The z-score measures how many standard deviations the measure is above or below the mean.
  • Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.
  • By the Central Limit Theorem, the sampling distribution of sample means of size n has standard deviation s = \frac{\sigma}{\sqrt{n}}.

For this problem, the parameters are given as follows:

\mu = 15, \sigma = 3, n = 40, s = \frac{3}{\sqrt{40}} = 0.4743

The probability is the <u>p-value of Z when X = 16 subtracted by the p-value of Z when X = 15</u>, hence:

X = 16:

Z = \frac{X - \mu}{\sigma}

By the Central Limit Theorem

Z = \frac{X - \mu}{s}

Z = \frac{16 - 15}{0.4743}

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Z = 2.11 has a p-value of 0.9826.

X = 15:

Z = \frac{X - \mu}{s}

Z = \frac{15 - 15}{0.4743}

Z = 0

Z = 0 has a p-value of 0.5.

0.9826 - 0.5 = 0.4826 = 48.26% probability that the sample mean is between 15 and 16 grams per day.

More can be learned about the normal distribution at brainly.com/question/15181104

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