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e-lub [12.9K]
2 years ago
10

Solve the system of equations by elimination. Show your work. i’ll give brainliest

Mathematics
2 answers:
My name is Ann [436]2 years ago
5 0

Answer:

x = 5

y = 4

Step-by-step explanation:

multiply the second equation by -1 and add the first equation to eliminate "x"

4x+6y=44\\-4x-2y=-28
_____________

       4y=16

y=16/4 =4

Replace "y" in the first equation:

4x+6(4)=44

4x+24=44

4x=44-24

x=20/4=5

Hope this helps

chubhunter [2.5K]2 years ago
3 0

Answer:

x = 5, y = 4.

Step-by-step explanation:

4x + 6y = 44        (A)

4x + 2y = 28        (B)

Subtract equations: (A) - (B).

0 + 4y = 16

y = 16/4

y = 4.

Now plug y = 4 into equation A:

4x + 6(4) = 44

4x = 44 - 24

4x = 20

x = 5.

Now check if these roots are correct by plugging them into equation B:

4x + 2y = 28

4(5) + 2(4) = 28   - check OK.

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Is the expression below completely factored? If not, complete the factorization.
Ket [755]

Answer:

A) No, because the greatest common factor is 8y?, and the completely factored form is 8y2(4y2 - 6y + 3).

Step-by-step explanation:

Considering the expression

4y(8y3 – 12y2 + 6y)

From the elements in the parenthesis, 2 and y can still be factored out such that what will be left of each element

8y3/2y = 4y2

12y2/2y = 6y

6y/2y = 3

Hence

4y(8y3 – 12y2 + 6y) = 4y*2y(4y2 - 6y +3)

= 8y2(4y2 - 6y + 3)

6 0
3 years ago
What is the distance between the point (−10, −2) and the point (−4, −2)?
Reika [66]
6

sorry it's late but hopefully it can help someone else

3 0
3 years ago
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The answer is B

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3 0
3 years ago
Draw a line having a slope of 1/3 and y-intercept of -1
Lilit [14]
Equation for slope=1/3 and y-intercept=-1 is:
y = mx + b
where m is slope and b is y-intercept.
So, equation becomes
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Now put different values of x in the equation to get corresponding value of y.
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0         1/3
1        -2/3
2        -5/3
3        -8/3
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-2       7/3
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8 0
3 years ago
Solve for k<br> k - 2/ 5 = 11j
Vikki [24]
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8 0
3 years ago
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