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Andreas93 [3]
3 years ago
5

Find the value of x Kinda confused

Mathematics
1 answer:
Nat2105 [25]3 years ago
5 0

Answer:

x = 374/7

Step-by-step explanation:

all of the angles should equal to 360 degrees since it's a quadrilateral.

So,

1+ (2x+10)+(3x-5)+(2x-20) = 360

1+ 2x+10 +3x-5+2x-20 = 360

7x -14 =360

7x = 360+14

7x = 374

x= 374/7

x= 53.428...

Hope this helps!

Please mark brainliest if you think I helped! Would really appreciate!

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4y = -3x - 8

Add 3x on both sides

3x + 4y = -8

Your final answer is 3x + 4y = -8.
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2 years ago
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Answer:

A= take away 3 b=??

Step-by-step explanation:

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3 years ago
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3 years ago
What is the answer?​
charle [14.2K]

Answer:

x = 20 but see below.

Step-by-step explanation:

Remark.

This is not well enough marked to know whether D = A or whether you have to do some algebra to find the relationship between A and D. So I will assume A = D and then I'll solve it so you have to manipulate A and D.

A = D

3x - 10 = 2x + 10                     Add 10 to both sides

3x - 10 + 10 = 2x + 10 + 10     Cancel

3x = 2x + 20                           Subtract 2x from both sides

3x-2x=2x-2x + 20

x = 20

A = E

If A = E then to find x you have to add 3 angles together.

E + D + 45 = 180                  Add the three angles of the triangle

E + D = 180 - 45                  Subtract  45 from both sides

E + D = 135                          Substitute for D and E

3x - 10 + 2x + 10 = 135        Combine like terms

5x = 135                              Divide by 5

x = 135 / 5

x = 27

Answer

I'd go with the first one.

5 0
3 years ago
What is the value of this expression -15-(-4)+17
Doss [256]

\sf\implies \:  - 15 - ( - 4) + 17

\sf \implies \:  - 15 + 4 + 17

\sf \implies \:  - 15 + 21

\boxed{ \tt \: ans \dashrightarrow 6}

<h3>Remember these laws of integers:</h3>

  • (+)(-)=(-)
  • (-)(+)=(-)
  • (-)(-)=(+)
  • (+)(+)=(+)

7 0
2 years ago
Read 2 more answers
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