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Triss [41]
3 years ago
7

Can someone please help me I've been stuck on this for so long​

Mathematics
2 answers:
Vilka [71]3 years ago
8 0

Answer:

x = -3, y=2

Step-by-step explanation:

x+3y =3

3y -2x =12

Solve the first equation for x

x = 3-3y

Substitute this into the second equation

3y -2(3-3y) =12

Distribute

3y -6 +6y =12

Combine like terms

9y -6 =12

Add 6 to each side

9y-6+6 =12+6

9y =18

Divide each side by 9

9y/9 =18/9

y = 2

Now find x

x = 3 -3y

x = 3-3(2)

x = 3-6

x = -3

Ne4ueva [31]3 years ago
6 0

Answer:

x = -3  y = 2

Step-by-step explanation:

x + 3y = 3

2x - 3y = -12

3x = -9

x = -3

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Miguel sells a house for 275,000. His commission for the sale is 7,562.5
valentinak56 [21]

Answer:

2.75\%

Step-by-step explanation:

To find what percentage a certain value is of another value, simply divide the first value by the second, respectively.

We want to find want percentage that 7,562.5 is of 275,000. Therefore, we will divide 7,562.5 by 275,000 to obtain a decimal:

\frac{7,562.5}{275,000}=0.0275

To convert from a decimal to a percentage, multiply by 100:

0.0275 \cdot 100=\boxed{2.75\%}

7 0
3 years ago
How do u subtract (3x+5y-4)_(4×+11)
AleksAgata [21]
Distribute the negative sign to the 4x and 11 making it 3x+5y-4-4x-11 and combine like terms 
5 0
3 years ago
When x^3+kx^2-4x+2 is divided by x+2 the remainder is 26 find k?​
Llana [10]

Answer:

  k = 6

Step-by-step explanation:

Using synthetic division, we find the remainder from the division to be ...

  remainder = 4k+2

Then we need to find k such that ...

  4k +2 = 26

  4k = 24 . . . . subtract 2

  k = 6 . . . . . .  divide by 4

The value of k is 6.

4 0
3 years ago
HELPPPP PLEASEEEE will give brainliest ​
ycow [4]

Answer:

I think it's the 3rd or fourth one. I'm not positive tho

8 0
2 years ago
Here is a system of linear equations: y = 3x + 4 y = 3x - 7 How many solutions, if any, does this system have?
marysya [2.9K]

Answer:

Step-by-step explanation:

y = 3*x  + 4

y = 3*x -   7

Each one of the above equations is the equation for a straight line.

The solution for such a system is the point P ( x₀ , y₀ ) which coordinates belong to both straight lines. According to this, there is only one solution for that system ( only one point of intersection). The intersection of a pair of straight lines either can occur or not depending on the slope of the lines, if they have the same slope they are parallel, then they did not touch each other ever. How can m,  be identified in the straight line equation??,   just by looking at the coefficient of x.  

The two equations have slope 3 they are parallel then there is not a solution ( there is not a common point to both equations)

7 0
3 years ago
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