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lilavasa [31]
2 years ago
6

► 00.00

Mathematics
1 answer:
lora16 [44]2 years ago
3 0

Answer:A and B and C

Step-by-step explanation: if that’s not correct press retry and you can redo it

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Worth 30 points. Help a homie out
Sauron [17]

Answer:

Multiply the second equation by -3 to get -3x - 9y = -30.

Step-by-step explanation:

When eliminating, you need to find a term with the negative of that term to combine so that they cancel each other out. An example would be 3x in the first equation and (-3x) in another equation so that when added, it becomes: 3x-3x = 0.

In the second equation, you see that there is already an x there and you just need to make it become (-3x). Thus, you multiply the entire second equation by -3 to make -3x. Once you have done that, you can combine the two equations and eliminate 3x from the first equation.

3x + 5y = 30

-3x - 9y = -30

3x + 5y -3x - 9y = 30 + (-30)

0 - 4y = 30 - 30

-4y = 0

<em>You can find y and then x later on from here. </em>

8 0
3 years ago
Based on the diagram, which expresses all possible
jok3333 [9.3K]

Answer:

B

Step-by-step explanation:

Given 2 sides of a triangle then the third side is in the range

difference of 2 sides < AB < sum of 2 sides , that is

54 - 27 < AB < 54 + 27

27 < AB < 81 → B

4 0
3 years ago
Calculating the give number summary
irga5000 [103]

Answer:

.

Step-by-step explanation:

6 0
2 years ago
The system of equations shown below is graphed on a coordinate grid:
salantis [7]

3y+x=4

2y-x=6

Solve x+3y=4 for x

Add -3y to both sides

x+3y-3y=4-3y

x=-3y+4

Substitute -3y+4 for x in -x+2y=6

-x+2y=6

-(-3y+4)+2y=6

Simplify both sides of the equation

5y-4=6

Add 4 to both sides

5y-4+4=6+4

5y=10

Divide both sides by 5

5y/5=10/5

y=2

Substitute 2 for y in x=-3y+4

x=-3y+4

x=(-3)(2)+4

x= -6+4

x= -2

Answer : x=-2 and y=2

The answer is A

 it is (-2,2) and lies on both lines


I hope that's help  !

6 0
3 years ago
Solve for x using the<br> distributive property.<br> 2(x - 5) = 10
Bingel [31]

Answer:

x=10

Step-by-step explanation:

2x-10=10

2x=20

x=10

5 0
2 years ago
Read 2 more answers
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