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Naily [24]
3 years ago
12

Plz help…10 points and a brainliest…

Mathematics
1 answer:
lidiya [134]3 years ago
7 0

Answer:

substitute the values given,

= (2a + b) - (a - 2b)

= (2(x + 2y) + x - 2y) - (x + 2y - 2(x - 2y))

= (2x+4y+x-2y) - (x+2y-2x+4y)

= (3x+2y) - (-x+6y)

= 3x + 2y + x - 6y

= 4x - 4y

then,

(2a+b) - (a-2b) = 4x - 4y

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Ants have 6 legs. Elena and Andre write equations showing the proportional relationship between the number of ants, a, to the nu
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Answer:

I agree with Elena

Step-by-step explanation:

Ants have 6 legs. Elena and Andre write equations showing the proportional relationship between the number of ants, a, to the number of ant legs, v.

Elena writes a = 6 times v

Andre writes v =1/6 times a.

Mathematically

The number of ants a is directly proportional to the number of legs

=a ∝ v

Because if

1 ant = 6 legs

2 ants = x legs

x = 6 legs × 2

x = 12 legs

The number of ants is directly proportional to the number of legs

Therefore, Elena is correct and Andre is wrong.

8 0
3 years ago
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3 years ago
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9a-18b+21c apply distributive property to factor out gcf of all three terms
horsena [70]
The GCF of the three terms (9a, -18b and 21c) is 3

Rewrite each of the terms so 3 is a factor
9a = 3*3a
-18b = -3*6b
21c = 3*7c

So we can say...
9a - 18b + 21c = 3*3a - 3*6b + 3*7c
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Answer: 3(3a - 6b + 7c)

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3 years ago
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8 0
3 years ago
What is 3×4y i need it ASAP
I am Lyosha [343]

Hello!

Explanation:

First, you had to do is multiply by the numbers. And don't forget to used variables.

4*3=12

3*4=12

12/4=3

12/3=4

Answer: → =12y

Hope this helps!

Thanks!

-Charlie

4 0
4 years ago
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