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Lera25 [3.4K]
4 years ago
14

Ayuda con mi tarea de matemáticas , dice asi : En una biblioteca hay 5 estantes , 2/5 de uno de ellos está ocupado por libros de

historia , 7/2 por libros de matemática y 11/10 por libros de inglés. Hay espacio en la biblioteca para colocar mas libros?
Mathematics
1 answer:
laiz [17]4 years ago
4 0

There are 5 shelves in the bookcase.

2/5 of one shelve is occupied.

That would be:

2/5*1/5=2/25 of all shelves

7/2 is more than 1, so it refers to the bookcase instead of one shelve. The same with 11/10.

So the total is:

2/5+7/2+11/10 = 5

So all shelves are completely full.

So there is no room for any other book.

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Scores on the Critical Reading part of the SAT exam in a recent year were roughly Normal with mean 495 and standard deviation 11
Karolina [17]

Answer:

(c) 118/V100 11.8

Step-by-step explanation:

We use the central limit theorem to solve this question.

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

In this problem, we have that:

\sigma = 118, n = 100

So

s = \frac{118}{\sqrt{100}} = 11.8

So the correct answer is:

(c) 118/V100 11.8

8 0
3 years ago
11xy 16y<br> 4x² + 3x 20x² + 7x-6
Salsk061 [2.6K]

Answer:

64x^2+7x-6 is the answer

4 0
3 years ago
Sixteen is seven plus three times a number find the number
Mama L [17]

Answer: x=3

Step-by-step explanation:

16 = 7 + 3x

9 = 3x

3 = x

:0

4 0
3 years ago
What is 2 3/4 divided by 7
alisha [4.7K]
2 3/4 divided by 7=0.39285714285
7 0
4 years ago
If you see that gasoline costs $1.70 in Georgia and $3.40 in California, you can
grin007 [14]

The question is incomplete:

If you see that gasoline costs $1.70 in Georgia and $3.40 in California, you can  conclude that gasoline is twice as expensive in California as in Georgia. This  conclusion from this comparison reflects the function of money as a:

-store of value

-an object with a value that varies sharply from one place to another

-medium of exchange

-unit of account

Answer:

Unit of account

Step-by-step explanation:

-Store of value refers to something that can be kept for a period of time and maintains its value in the future.

-An object with a value that varies sharply from one place to another  means that products can have different prices in different places.

-Medium of exchange refers to an object with an standard value that allows  you to purchase goods or services.

-Unit of account refers to a numerical unit that allows you to compare the value of products and services.

According to this, the answer is that this  conclusion from this comparison reflects the function of money as a unit of account because it indicates that money works as a unit that you can use to compare the value of products, in this case the price of gasoline in different places.

6 0
3 years ago
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