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vampirchik [111]
3 years ago
12

Please help me I will give you the briain thing and extra points. (image below) 9/13

Mathematics
2 answers:
Fynjy0 [20]3 years ago
8 0

Answer:

C is the answer

Step-by-step explanation:

Ulleksa [173]3 years ago
3 0
The answer is C hope this helps
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The perimeter of a triangle is 34cm. What are the lengths of the sides if the first side is twice the length of the second side
dybincka [34]

Answer:

8sm, 16sm, 10sm

Step-by-step explanation:

the first side of the triangle: x

the other side of the triangle: 2x

the third side of the triangle: x+2

the perimeter of the triangle: x+2x+x+2=34

4x=32

x=8

2*8=16

8+2=10

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When we use a number line, we ask ourselves where do we place the....?
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3 years ago
Find (-21)+(-13)+20.
Fed [463]

Answer:

14

Step-by-step explanation:

-21+-13+20=14

This is true because when subtracting negatives by negatives you pretty much add them and then when you add a positive to a negative you are technically removing the negative by the amount you are adding.

In short its kind of like using inverse operation in a way.

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5 0
3 years ago
Solve the following system of equations: −2x + y = 1 −4x + y = −1
Liula [17]
Hello!

-2x + y = 1
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You can subtract these equations from each other to eliminate y

2x = 2

Divide both sides by 2

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Put this into one of the original equations

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Combine like terms

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Add 2 to both sides

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The answer is D) (1, 3)

Hope this helps!
6 0
3 years ago
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