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emmainna [20.7K]
4 years ago
15

The pizza shop offers a 15 percent discount for veterans and senior citizens. Which equation represents the discount price? Disc

ount Price – Original Price = 15% Discount Price = (Original Price)(1 – 0.15) Discount Price = (Original Price)(0.15) Discount Price = 1 – (Original Price)(0.15)
Mathematics
2 answers:
vlada-n [284]4 years ago
6 0

Answer:

Discount price = Original price × 0.15

Option 3 is correct.

Step-by-step explanation:

The pizza shop offers a 15 percent discount for veterans and senior citizens.

Let original price be O and discount price be D

Discount percentage = 15%

Discount price = Original price × 15%

now change % sign to decimal

So, 15% = 0.15

Discount price = Original price × 0.15

Hence, The correct expression is "Discount price = Original price × 0.15"

denil
2 years ago
your incorect
DochEvi [55]4 years ago
3 0

Answer:

Discount Price = (Original Price)(0.15)

Step-by-step explanation:

When you are eating at the pizza shop with your grandparents they will take off 15% of the price. This means you will times.

Discount Price = (Original Price)(0.15) is your answer.

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4 years ago
The mean rent of a 3-bedroom apartment in Orlando is $1300. You randomly select 10 apartments around town. The rents are normall
lana [24]

Answer:

96.49% probability that the mean rent is more than $1100

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal probability distribution

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

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

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

In this problem, we have that:

\mu = 1300, \sigma = 350, n = 10, s = \frac{350}{\sqrt{10}} = 110.68

What is the probability that the mean rent is more than $1100?

This is 1 subtracted by the pvalue of Z when X = 1100. So

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

By the Central Limit Theorem

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

Z = \frac{1100 - 1300}{110.68}

Z = -1.81

Z = -1.81 has a pvalue of 0.0351

1 - 0.0351 = 0.9649

96.49% probability that the mean rent is more than $1100

7 0
4 years ago
Two consecutive odd numbers total -20 find the smaller
Yakvenalex [24]

Answer:

-9

Step-by-step explanation:

use an equation to solve this

consecutive means in succession, one after the other

since they're odd, both numbers have to be odd

let x be the first number

x+x+2=-20

+2 because if you only +1, one of the numbers would be even

2x+2=-20

-2. -2

2x=-22

x=-11

the smaller would be -9 since we are adding x and x+2 together

6 0
2 years ago
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