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Stels [109]
3 years ago
12

What is the simplified expression for Negative 3 (2 x minus y) + 2 y + 2 (x + y)?

Mathematics
2 answers:
Agata [3.3K]3 years ago
8 0

Answer:

7y-4x

Step-by-step explanation:

Lana71 [14]3 years ago
5 0

Answer:

7y - 4x

Step-by-step explanation:

-3 (2x-y)+2y+2(x+y)\\

Step 1:  Open the brackets

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

Step 2: Bring the similar variables together

=-6x +2x \ +3y + 2y + 2y

Step 3: Simplify by adding/subtracting the coefficients of the similar variables

= - 4x +7y

Step 4: Rearrange as required.

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What is the least common denominator of 1/7,2/5 and 2/3?
Maurinko [17]

Answer:

105 is the least common denominator

Step-by-step explanation:

Since 7, 5 and 3 are all prime.

LCM would be 7×3×5 = 105

5 0
3 years ago
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G(x) =2x + 4; Find g(-3)
yuradex [85]

Answer:

g(-3)=-2

Step-by-step explanation:

<u>Substitute g(-3) into the function:</u>

g(-3)=2(-3)+4

<u>Multiply:</u>

<u />g(-3)=-6+4

<u>Add:</u>

<u />g(-3)=-2

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3 years ago
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Which dot plot three TVs in two houses
Bogdan [553]

Answer:

A

Step-by-step explanation:

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3 years ago
If 800g of a radioactive substance are present initially and 8 years later only 450g remain, how much of the substance will be p
artcher [175]

A=Pe^(rt)

P = 800g

t = 8 years

A = 450g

r = This is what we will try and find to start with

450=800e^(r*8)

After running the math through a calculator, we end with r = -0.07192

Now we just re-input this information into our equation: A=800e^(-0.07192*16)

A=800e^(1.15072)

Now we will re-write the equation using the negative exponent rule:

A = 800 1/e^1.15072

Combine right side:

A = 800/e^1.15072

Then do the math:

A = 253.12709836......

That will give us A = 253 (rounded to the whole number)

I hope this helps! :)

5 0
3 years ago
What is 12/7 as an mixed number ??
joja [24]

Answer:

1 5/7

Step-by-step explanation:

4 0
2 years ago
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