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fenix001 [56]
3 years ago
12

Using elimination to solve the system 2x + y = 8 and x + y = 4, which of the following could be the first step?

Mathematics
1 answer:
wolverine [178]3 years ago
4 0
Answer: the option A.

The elimination method consist is adding the two equations in a way that one variable be eliminated..

In order to do that you might have to manipulate on of the equations prior to add the two equations.

In this case, ff you multiply the second equation by - 1 you will get

  - x - y = - 4

which you can add to the first equation

   2x + y = 8 to eliminate the y.

 
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Step-by-step explanation:

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3 years ago
The amount of money in Malik's bank account 3 years ago was $1,000. This year his balance is $1,900.
Alborosie

Answer:

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Step-by-step explanation:

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2 years ago
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Answer:

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2 years ago
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x<3/4

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Last question! I need help with showing my work! I already have the answer in the attached image below, thanks!
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Answer:

see explanation

Step-by-step explanation:

Given

\sqrt{\frac{4x^2}{3y} }

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Note that \sqrt{a} × \sqrt{a} = a

= \frac{2x}{\sqrt{3y} } × \frac{\sqrt{3y} }{\sqrt{3y} }

= \frac{2x\sqrt{3y} }{3y}

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