2 years ago

3x +y = –15 -3x - 4y = 30 Which variable will eliminate in the system?

Mathematics

1 answer:

Anestetic [448]2 years ago

5 0

Answer:

x should be eliminated

hope it helps

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A person standing in the ground throws a ball onto a flat rooftop. The ball rolls around for several seconds. Then the ball fall

natali 33 [55]

Answer:

Graph D

Step-by-step explanation:

According to the question, the correct graph is D.

It's not A because, the ball is thrown after some pause and the ball doesn't roll on the roof, falls immediately.

It's not B or C because the ball goes up after reaching the roof but should fall down.

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2 years ago

I need you show me you answer for number 47 it's a or b or c

nikitadnepr [17]

The answer for question 47 is A

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3 years ago

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lina2011 [118]

Answer:

Step-by-step explanation:

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2 years ago

What is x for Unknown angle problems with algebra?

yulyashka [42]

The value of x=20

Step-by-step explanation:

We need to find the value of x

We are given a right angle which is equal to 90°

So, all three angles must sum to 90°

Our equation will be:

$x+2x+(x+10)=90$

Solving and finding value of x

$x+2x+x+10=90\\4x=90-10\\4x=80\\x=80/4\\x=20$

So, the value of x=20

Keywords: Angles

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5 0

3 years ago

Evaluate the given algebraic expressions using the value of the variables:

lana66690 [7]

1. 6(3-8)-10

=6(-5)-10

=-30-10

=-40

2.30(3)+15(10)

=90+150

=240

3. 2(3)(3+32+32)

=6(67)

=402

4 0

3 years ago