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Leya [2.2K]
3 years ago
15

Use the system of two linear equations to answer the question. 2x+5y=4 y=2x+8 Which of the following statements is correct about

the solution of the system? A The x-coordinate is 2. B The x-coordinate is -3. C The y-coordinate is -3. D The y-coordinate is 5.
Mathematics
1 answer:
Blababa [14]3 years ago
5 0
2x + 5(2x+8) = 4
2x + 10x + 40 = 4
12x = -36
x= -3
So it’s B
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HELP!
Advocard [28]

9)its a fraction

x=−451/19

y=−302/19



16)

Line 1: y = 5x +13

Line 2: y = 5x + 12

7 0
3 years ago
The floor of a rectangular room is 300 cm long and 180 cm wide. to carpet the floor? How many small tiles are needed​
Vinvika [58]

The number of small tiles are needed​ is 300 tiles.

<h3>Number of tiles needed</h3>

Using area of rectangular formula

Area of the room = length(l) × breadth (b)

Area of the room=300 cm×180 cm

Area of the room=54,000 cm²

Number of tiles needed = Area of rectangular region / Area of one tile

Number of tiles needed=54,000/180

Number of tiles needed=300 tiles

Therefore the number of small tiles are needed​ is 300 tiles.

Learn more about number of tiles needed here:brainly.com/question/2136390

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4 0
2 years ago
Which of the following statements contain a variable? Check all that apply.
Roman55 [17]
B
Explanation:

A Variable is a symbol for a number we don't know yet. We don’t know the number of colors on the page.
4 0
2 years ago
3.249 rounded to nearest tenth
Viktor [21]

Answer:

3.2

Step-by-step explanation:

4 is in the hundredths place. It is less than 5 so you leave the tenths place alone, so you get 3.2.

4 0
3 years ago
Read 2 more answers
18 Geometry question: Use an algebraic equation to find the measure of each angle that is representative in terms of X
Dmitrij [34]

Answer:

12x - 28° = 116°

7x + 32° = 116°

Step-by-step explanation:

12x - 28° and 7x + 32° are vertical angles. Vertical angles are congruent.

Therefore, to find the measure of each angle, we have to set each equation equal to each other as follows:

12x - 28° = 7x + 32°

Collect like terms

12x - 7x = 28 + 32

5x = 60

Divide both sides by 5

5x/5 = 60/5

x = 12

✔️12x - 28°

Plug in the value of x

12(12) - 28

= 144 - 28

= 116°

✔️7x + 32°

7(12) + 32

= 84 + 32

= 116°

4 0
2 years ago
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