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Aleksandr [31]
3 years ago
11

1. What should be done to these equations to solve the system of equations by elimination? 2+y=12 5x - 3y = -3​

Mathematics
1 answer:
atroni [7]3 years ago
3 0
<h3>Answer:</h3><h3>Multiply the first equation by 3</h3>

<h3>explanation</h3>

To solve a simultaneous equation using elimination method, you eliminate one variable first.

Before you can do that, the coefficient of one of the variable in the two equations must be same.

From the questions, for the coefficient of one variable in the two equations to be thesame, we multiply the first equation by 3.

If we do this, the coefficient of Y in the two equations will now be 3.

So that the correct option is

<h2>Multiply the first equation by 3</h2>
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C is the midpoint of AD. B is the midpoint of AC. BC = 14. What is<br> the length of BD?
serg [7]

Answer:

Length of segment BD = 42 units

Step-by-step explanation:

Since C is the midpoint of AB,

Then segment AC = segment CD

Since B is the midpoint of BC,

Then the length of segment AB = Length of segment BC = 14 units

Length of AC = 2 × (14)

                      = 28 units

Length of AC = length of CD = 28 units

Length of segment BD = Length of BC + length of CD

                                      = 14 + 28

                                      = 42 units

Therefore, length of segment BD is 42 units.

7 0
3 years ago
Write an algebraic expression for: The quotient of a number and twelve.
Arisa [49]

The quotient of a number and 12

Quotient means division.

The answer is C.) n/12

If you have any questions feel feee to ask.

Hope this helps.

3 0
3 years ago
What is an example of similar triangles or polygons that you may see in the real world?
Roman55 [17]

triangles ABC AND MAc the right angle and angle b

4 0
3 years ago
Find mZLKM.<br> м.<br> M<br> K/(3x – 70)<br> 60°<br> L<br> mZLKM=<br> l
Bingel [31]

Answer:

125

Step-by-step explanation:

( 3x - 70 ) is exterior angle.

60 and x are interior angles.

Formula : -

Exterior angle of a triangle

= Sum of two interior angles in a triangle

3x - 70 = x + 60

3x - x = 60 + 70

2x = 130

x = 130 / 2

x = 65

m∠LKM = 3x - 70

= 3 ( 65 ) - 70

= 195 - 70

m∠LKM = 125

8 0
3 years ago
Find the measure of 3
Hatshy [7]

Step-by-step explanation:

60°

is the answer

hope is helpful

3 0
3 years ago
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