2 years ago

I believe it’s A, is that correct?

Mathematics

1 answer:

LenaWriter [7]2 years ago

5 0

Answer:

yes I think you are correct

Step-by-step explanation:

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Helppp can someone solve this please

Norma-Jean [14]

Answer:

$\displaystyle x=-15$

Step-by-step explanation:

<u>Solution Of A System Of Equations </u>

A system of linear equations is given as

$\displaystyle \left\{\begin{matrix}ax+by=c\\ dx+ey=f\end{matrix}\right.$

There are many methods to solve them. We will use the method of reduction

The given system is

$\displaystyle \left\{\begin{matrix}2x+3y=45\\ x+y=10\end{matrix}\right.$

Multiplying the second equation by -3

$\displaystyle \left\{\begin{matrix}2x+3y=45\\ -3x-3y=-30\end{matrix}\right.$

Adding the resulting equations

$\displaystyle -x=15$

$\displaystyle x=-15$

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2 years ago

(08.02)The ages of several trees in a neighborhood are shown below:

vesna_86 [32]

The answer is 12.4 :)

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3 years ago

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What is the value of 419 - 2)+72+ 12 HURRY PLEASE

brilliants [131]

Answer:501

Step-by-step explanation: So basically you take 419-2 now thats 417+72=489+12=501

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2 years ago

Examine whether each of the following pair of lines AB and CD are parallel or not

MatroZZZ [7]

Answer:

Yes

Step-by-step explanation:

For lines to be parallel alternate interior angles should be equal

Angle GHD=180-angle FHD

=180-115 = 65°

Therefore angle AGH = angle GHD

So lines are parallel

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Whoa .. that’s a lot

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3 years ago