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slamgirl [31]
3 years ago
8

is it possible to solve the system {3x-2y=10][ x+2y=6} by using substitution? if so,explain how.which method substitution or eli

mination, is more efficient?why?
Mathematics
1 answer:
klemol [59]3 years ago
8 0
Yes, you can do it using substitution. However, elimination would be better because you could just add the two equations and have y cancelled out immediately. 
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Nat2105 [25]
The answer is D plane Qpr
3 0
3 years ago
Create an equation with one solution of x = −4.
katen-ka-za [31]

Answer:

What is missing is -5x - 20

Step-by-step explanation:

To find this, simply solve for the parenthesis as if it were a variable of its own. This will allow you to see exactly what is missing.

8x - (x - 20) = 2x - (_______)

8x - x + 20 = 2x - (_______)

7x + 20 = 2x - (_______)

5x + 20 = - (_______)

-5x - 20 = (_______)

So the answer for the parenthesis is -5x - 20

3 0
4 years ago
Write an equation of the line passing through the point (3, -1) and parallel to the line y=2/3x - 5. Show work
alex41 [277]

Answer:

The answer is: y = 2/3x - 3

Step-by-step explanation:

Given point: (3, -1)

Given equation: y = 2/3x - 5, which is in the form y = mx + b where m is the slope and b is the y intercept.

Parallel lines have the same slope. Use the point slope form of the equation with the point (3, -1) and substitute:

y - y1 = m(x - x1)

y - (-1) = 2/3(x - 3)

y + 1 = 2/3x - 6/3

y + 1 = 2/3x - 2

y = 2/3x - 3

Proof:

f(3) = 2/3(3) - 3

= 6/3 - 3

= 2 - 3

= -1, giving the point (3, -1)

Hope this helps! Have an Awesome Day!!  :-)

6 0
3 years ago
What is 28 divided by 3.2 ?? Please include steps :(
expeople1 [14]

thats the answer just look at the picture :)

for the work

8 0
3 years ago
Somebody help me with this plsss it for geometry
ICE Princess25 [194]
Use an online math calculator for more accurate answers just plug in the variables
8 0
2 years ago
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