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VladimirAG [237]
3 years ago
7

2x+7y=2 and 4x+2y=-2 using the elimination method

Mathematics
1 answer:
Natalija [7]3 years ago
5 0
I hope this helps you

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Can I get help with this please?
sammy [17]
First equation:
5(x+1)=20 —— distribute the 5 to the x and 1
5x+5=20 ——- subtract 5 from 20
5x=15 ———— divide by 5 from both sides
X=3 ————— answer

Second equation:
5x+1=20——— subtract 1 from 20
5x=19 ———— divide by 5 from both sides
X=19/5———— answer in fraction form
X=3.8————- answer in decimal form
8 0
3 years ago
Find the vertex of this parabola.
Levart [38]
The best answer is c
3 0
4 years ago
Please select the best answer and click submit Solve kx-4=9 for x
shepuryov [24]

Answer:

Option B. x = \frac{13}{k}.

Step-by-step explanation:

The given equation is kx - 4 = 9

We will add 4 on both the sides of the equation

kx - 4 +4 = 9 +4

kx = 13

Now we will divide by k on both the sides of the equation

\frac{1}{k}(13x) = \frac{1}{k}13

x = \frac{13}{k}

Therefore Option B x = 13/k is the right answer.

6 0
4 years ago
Read 2 more answers
What are the steps on how to copy an angle? (Geometry)
Juli2301 [7.4K]

Step-by-step explanation:

Make a point P that will be the vertex of the new angle.

From P, draw a ray PQ. ...

Place the compasses on point A, set to any convenient width.

Draw an arc across both sides of the angle, creating the points J and K as shown.

Hope this helps :)

4 0
3 years ago
Simplify fully: √18 / √8
sukhopar [10]
Sqrt18  = 3 sqrt2
sqrt 8 = 2 sqrt2

sqrt18 / sqrt 8  = 3 sqrt2 / 2 sqrt2  = 3/2  answer
4 0
3 years ago
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