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alexandr402 [8]
3 years ago
11

B) A stationer fixes an equal rate of profit in his each item. If he sells a calculator costing Rs 700 for Rs 756, how much shou

ld a customer pay for a novel book costing Rs 450?
​
Mathematics
1 answer:
inna [77]3 years ago
8 0

Answer:

how many of these people have the promise that l could have a better life and the new wo would have 99feet than 8PM in a simple sentence and u will not have any thing that is not fund to make the most successful and the better for Mason than they will have been for a while in a long way to get a job done on a job in hindi or other living places or to get them into a business and the idea that it can you see how they will make a film that they will never do you have lea or a fundam is not enough that l to be the most popular of your books or u have any of their vie in a long period is a fundamental righ in a lot for me also there in season two of them I have a great work.

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How do I do this problem?
4vir4ik [10]
You have to put the number under 1 so you would get 1 over -27
3 0
3 years ago
Elizabeth’s aunt started a college savings account for her with $6,000. What is the balance of the account after 5 years if the
vaieri [72.5K]

Answer:

6750

Step-by-step explanation:

simple interest = P×r%×t

P = $6000

r = 2.5%

t = 5 years

I = 6000 × 2.5/100 × 5

= 750

6000 + 750 = $6750

7 0
3 years ago
At Pike Place Fish Market in Seattle, customers can purchase a variety of different types of seafood. One type of seafood sold a
allsm [11]

Answer:

z=1.28

And if we solve for a we got

a=3.6 +1.28*0.8=4.624

So the value of height that separates the bottom 90% of data from the top 10% is 4.624.

So then the best answer for this case would be:

 C. 4.64

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

Let X the random variable that represent the weights of a population, and for this case we know the distribution for X is given by:

X \sim N(3.6,0.8)  

Where \mu=3.6 and \sigma=0.8

For this part we want to find a value a, such that we satisfy this condition:

P(X>a)=0.1   (a)

P(X   (b)

Both conditions are equivalent on this case. We can use the z score again in order to find the value a.  

As we can see on the figure attached the z value that satisfy the condition with 0.9 of the area on the left and 0.1 of the area on the right it's z=1.28. On this case P(Z<1.28)=0.9 and P(z>1.28)=0.1

If we use condition (b) from previous we have this:

P(X  

P(z

But we know which value of z satisfy the previous equation so then we can do this:

z=1.28

And if we solve for a we got

a=3.6 +1.28*0.8=4.624

So the value of height that separates the bottom 90% of data from the top 10% is 4.624.

So then the best answer for this case would be:

 C. 4.64

8 0
3 years ago
What’s the approximate circumference of a circle with radius 10 feet?
Elis [28]

Answer: C≈62.83ft

Step-by-step explanation:

simply take your radius and times it by 2 and you get 20. then times twenty by pi.

8 0
3 years ago
Read 2 more answers
Choose 3 values that would make this inequality true. 8n + 4 ≤ 28
Lilit [14]

Answer:

-1, 0, 2

Step-by-step explanation:

Please let me know if you want me to add an explanation as to why this is the answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)

4 0
3 years ago
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