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yuradex [85]
3 years ago
11

How to solve a system of equations using elimination?

Mathematics
1 answer:
Nastasia [14]3 years ago
5 0
If  you have a problem like: 
4x+2y=20
2x+2y=16
 You would subtract
4x-2y=20
-2x+2y=16
You would get the new problum
2x=4
You now want to divide the 2 on both sides to solve for x
x=2

Now that you've solved for X you want to solve for y. So use substitution to solve for y. You would want to substatute the x for the 2 in either of the problums. I'll use the first one.
4(2)+2y=20

You first want to multiply te 4(2) you would get a new problum.
8+2y=20

Now you want to subtract the 8 on both sides.
2y=12

The last step to solve for y is to divide the 2 on both sides.
Y=6

So your answers would be
x=2
y=6


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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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2 years ago
Which could you use to prove triangle AED is congruent to triangle CEB?
Hunter-Best [27]

Answer:

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Step-by-step explanation:

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To prove:

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                    Statements                         Reasons

1). m∠AED = m∠BC = 90°              1). Given

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3). AD = BC                                    3). Given

4). ΔAED ≅ ΔCEB                          4). By HL theorem of congruence

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4 0
3 years ago
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The height of the cone is also the height of the cube. Thus, it is 10 inches.

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