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Marianna [84]
3 years ago
9

2x+8+x=2x+15 what is x equal to ? Please answer.

Mathematics
1 answer:
Amiraneli [1.4K]3 years ago
4 0

Answer: x = 7

Step-by-step explanation:

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Help me PLease<br><br><br><br> also explain how to do it
Lady bird [3.3K]

❥\Large\pmb{ \underline {\tt Answer}}

So we can only find x if other two angles of triangle is given.

In angle B as u can see boxed shape angle is there then it probably means it's a 90° angle.

We know sum of angles of triangle = 180°

{Reson :-

There's a formula to fund sum of angles of figure

  • (n-2) × 180
  • (3 -2) × 180
  • 1 × 180
  • 180°

}

Now Let's proceed

\boxed{ \rm Side_1+Side_2+Side_3 = 180\degree}

Fill all the given values

\dashrightarrow \tt 90 \degree + 55 \degree + c = 180 \degree

\\  \\

\dashrightarrow \tt 145\degree + c = 180 \degree

\\  \\

\dashrightarrow \tt  c = 180  \degree - 145\degree

\\  \\

\dashrightarrow \tt  c = 35\degree

\\  \\

Value of x = 35°

~BrainlyVIP ⸙

8 0
3 years ago
How to solve -4x+8y=-24
lukranit [14]

Answer:

x=6

y=-3

Step-by-step explanation:

<em><u>solve for x-</u></em>

-4x+8y=-24 replace y with 0

-4x+8(0)=-24

-4x=-24 divide by -4 on both sides

x=6

<u><em>Solve for y-</em></u>

-4x+8y=-24 replace x with 0

-4(0)+8y=-24

8y=-24 divide by 8 from both sides

y=-3

8 0
3 years ago
Without building the graph find the coordinates of the point of intersection of the lines gIven by the equations y=2x+3 and 3x+y
Natali5045456 [20]

Answer:

intersection is (1,5)

Step-by-step explanation:

plug one equations into the other

y=2x+3

3x+y=8

3x+2x+3=8

simplify

5x+3=8

subtract 3

5x=5

x=1

plug x into one equation

y=2+3=5

intersection is (1,5)

7 0
3 years ago
What is the arc length of the shaded region to the nearest tenth?
Maslowich

Answer:

285

Step-by-step explanation:

The total amount of degrees in a circle is 360, we know that the un-shaded portion of the circle is 90 degrees this means that the shaded portion has 270 degrees.

We also know that the area of the circle is \pi r^{2} but we are finding a portion of that, therefore we would need to multiply it by (\frac{270}{360} ). The radius is also given which is 11.

Area of the shaded region = (\frac{270}{360}) * \pi 11^{2} = 285

4 0
3 years ago
Graph the inequalitly y&gt; 2/3x -1
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4 years ago
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