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4 years ago

Ktoś mi to rozwiarze pls

Mathematics

1 answer:

WARRIOR [948]4 years ago

3 0

$2a+(3a-7)=2a+3a-7=5a-7$

$(2x-3)+x=2x-3+x=3x-3$

$7-(5x+4)=7-5x-4=3-5x$

$3x-(y-2x)=3x-y+2x=5x-y$

$-(3a+6)-4=-3a-6-4=-3a-10$

$-(x-2y)-3x=-x+2y-3x=2y-4x$

$(2p-1)+(3+5p)=2p-1+3+5p=7p+2$

$(4-2x)-(7x-2)=4-2x-7x+2=6-9x$

$-(2x-1)+(3x+1)=-2x+1+3x+1=x+2$

$(2m+4n)+(m-0,5n)=2m+4n+m-0,5n=3m+3,5n$

$(4a-7b)-(2a+3b)=4a-7b-2a-3b=2a-10b$

$-(2p-r)-(2r-p)=-2p+r-2r+p=-p-r$

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The sum of scores of ella and Kath in the summative test is not greater than 50. supposed Ella's score is 22 points, what could

Firlakuza [10]

We want to see which could be the possible score of Kath for the given information. We will find the inequality:

K ≤ 33

<h3>Stating what we know:</h3>

The given information is:

The sum of the scores is not greater than 55 points
Ella's score is 22 points.

<h3>Writing the inequality:</h3>

First, we need to define the variable K for Kath's points, because of the given information, we can write the inequality:

K + 22 ≤ 55

This means that the sum of the points is smaller than or equal to 55.

Now we just need to solve this for K, to do this, we subtract 22 in both sides:

K ≤ 55 - 22

K ≤ 33

From this, we can conclude that Kath has at most 33 points.

If you want to learn more about inequalities, you can read:

brainly.com/question/11234618

7 0

2 years ago

Freddy has a shelf that is 72/5 inches wide. How many catalogs can freddy arrange on the shelf if each catalog is 4/5 of an inch

Leni [432]

Hey!

72/5 ÷ 4/5

All you have to do is divide 72 by 4 because the denominator is the same.

72 ÷ 4 = 18

Answer ⇒ 18 catalogs

Hope this helps! :)

4 0

3 years ago

Read 2 more answers

Suppose there is a simple index of two stocks, stock A and stock B. Stock A opens on Monday with 5000 shares at $2.75 per share.

Yanka [14]

Answer:

Step-by-step explanation:

What is the name of an investment that pools money from many investors in order to acquire a large variety of stocks, bonds, and other investments?

Mutual fund

Annuity

Derivative

closeIncorrect

done

Question 2

2 points

What is the name of the computerized system that provides price quotations for various stocks traded on the market?

NYSE

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Nasdaq

Dow Jones

doneCorrect

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Question 3

2 points

On a particular day, the Dow Jones had a rate of change of 2.8%. Which of the following statements must also be true?

The Nasdaq decreased.

The S&P 500 increased.

done

The average of the 30 stocks in the Dow Jones increased.

Every stock in the Dow Jones increased.

doneCorrect

done

Question 4

2 points

At the beginning of the day, stock XYZ opened at $3.72. At the end of the day, it closed at $4.05. What is the rate of change of stock XYZ?

9.8%

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8.9%

4.1%

3.7%

doneCorrect

done

Question 5

2 points

What is the name of the federal agency that regulates the investment industry?

NYSE

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SEC

S&P 500

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Question 6

2 points

At the beginning of the day, the sum of the stocks in the Dow Jones was $10,289.57. At the end of the day, the sum of the stocks in the Dow Jones was $10,124.19. What was the rate of change of the Dow Jones on this particular day?

-1.8%

-1.0%

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-1.6%

-1.2%

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Question 7

2 points

Suppose there is a simple index of three stocks, stock ABC, stock XYZ, and stock QRS. Stock ABC opens on day 1 with 5000 shares at $3.25 per share. Stock XYZ opens on day 1 with 500 shares at $8.25 per share. Stock QRS opens on day 1 with 10,000 shares at $4.75 per share. The price of stock ABC on day 8 begins at $2.80. The price of stock XYZ on day 8 begins at $7.50. Stock QRS opens on day 8 with a price of $4.10 per share. Assume that each stock has the same number of shares that it opened with on day 1. What is the rate of change of this simple index over 1 week?

15.5%

13.4%

-15.5%

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-13.4%

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Question 8

2 points

What is the name of indicator of stock market prices that is the average of 30 selected industrial stocks?

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Dow Jones

SEC

S&P 500

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Question 9

2 points

Suppose there is a simple index of three stocks, stock X, stock Y, and stock Z. Stock X opens the day with 2000 shares at $3.80 per share. Stock Y opens the day with 1000 shares at $3.50 per share. Stock Z opens the day with 3000 shares at $4.30 per share. This simple index rises 5.4% over the course of the day. What is the value of the index at the end of the day? Round your answer to the nearest hundred.

$25,800

$24,600

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$25,300

$24,000

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Question 10

0 points

Suppose there is a simple index of two stocks, stock A and stock B. Stock A opens on Monday with 5000 shares at $2.75 per share. Stock B opens on Monday with 3000 shares at $4.30 per share. Stock A opens on Tuesday at $3.10 per share, and stock B opens on Tuesday at $4.85 per share. Both stocks have the same number of shares that they opened with on Monday. What is the rate of change of this simple index over 1 day?

-11.3%

-12.8%

12.8%

11.3%

closeIncorrect

4 0

3 years ago

Read 2 more answers

- The water level of a lake fell by 13 inches during

bezimeni [28]

Answer:

r = - 13 / 15 inches/week

Step-by-step explanation:

The numerator is 13

and the denominator is 15, then we have

r = - 13 / 15 inches/week

r < 0 since the water level of the lake fell

6 0

4 years ago

I need some help:

dedylja [7]

The unit rate is another way of saying speed, so we divide the distance over the time. We can pick on any row

If we pick row 1, then, speed = distance/time = 90/2 = 45

Row 2 says the same thing: 135/3 = 45

So does row 3: 225/5 = 45

and so on

Because the speed is 45 mph, the unit rate is 45 miles in one hour. The term "unit" implies how much distance can be covered in one unit of time, in this case 1 hour.

You have the correct answer. Nice work.

6 0

3 years ago