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alexira [117]
3 years ago
5

30. What is the selling price of an article that lists at $1,500 subject to discounts of 40%, 25%, and 10%? (You may use the met

hod described in “Check Your Selling Price.”) 31. What is the discount on $640 if the discount rates are 25%, 10%, and 5%?
Mathematics
2 answers:
Fiesta28 [93]3 years ago
8 0
Selling price is $607.50
Alexandra [31]3 years ago
7 0

Answer:

1500-40%= 900

1500-25%= 1125

1500-10%=1350

640-25%= 480

640-10%=576

$640-5%=608

Step-by-step explanation:

In order to calculate this you just need to mutliply the cost of the products by the amount that is not in disscount, for example the 1500 product has a disscount of 25% that means that the final cost will be 75% so 1500+.75=1125 and taht would be the cost.

The same with all of the other prices,  you taje the original price and multiply it by the decimal final percentage price, and you get the final price.

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A professor thinks that the students in her statistics class this term are less creative than most students at this university.
choli [55]

Answer:

It is not enough evidence to reject null hypothesis. It is not enough evidence to say that mean score is not equal to 35.

Step-by-step explanation:

\mu=35\\n=23\\\=x=33\\s=5\\\alpha=0.1

1. Null and alternative hypothesis

H_{0}:\mu=35\\H_{1}:\mu

2. Significance level

\alpha=0.1\\1-\alpha=0.99

Freedom degrees is given by:

v=n-1\\v=23-1=22

For a sgnificance level of 0,01 and 22 freedom degrees,  t-student distribution value is:

t_{0.01;23}=-2. 5083

3. Test statistic

t=\frac{\=x-\mu}{\frac{s}{\sqrt{n} } }

t=\frac{33-35}{\frac{5}{\sqrt{23} } }

t=-1,918

In this case, we have an one left tailed analysis, it means that null hypothesis is rejected if t

-1.918>-2.5083

Conclusion:

It is not enough evidence to reject null hypothesis. It is not enough evidence to say that mean score is not equal to 35.

3 0
3 years ago
A student did a survey on how people feel when they are hungry. The results were that more people felt a stabbing pain than thei
Kamila [148]

it’s 19 :)

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7 0
3 years ago
Eva collected 2,090 coins. Elijah collected 1,910 coins. They divided all their coins into 8 equal stacks. How many coins are in
Oxana [17]

Answer:

500 coins. 2,090 + 1,910 = 4,000. 4,000/8 = 500. hope this helps

Step-by-step explanation:

- Zombie

7 0
3 years ago
Brianna has 4 pink bracelets one third of all her braces are pink how many places does Rihanna have the brand has 4 pink bracele
tankabanditka [31]
Can you retype this? It's kind of hard to understand what you are saying
3 0
3 years ago
What is the volume of the box
Sergeu [11.5K]

Answer: 240

Step-by-step explanation: the base is 40, so 4x10. volume= LxWxH, which is just all the units. 4x10x6=240. hope this helps!

6 0
3 years ago
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