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konstantin123 [22]
2 years ago
15

How is adding and subtracting decimals similar to adding and sutracting whole numbers?

Mathematics
2 answers:
emmainna [20.7K]2 years ago
8 0
The concept is the same. Take away, regroup. You subtract from the left to the right.

Fittoniya [83]2 years ago
5 0
You add the same way. the only difference for adding decimals is that you need to line up the decimals, then carry them down.
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20 POINTS
Brut [27]

Answer:

Substitute (x+4)2−16 ( x + 4 ) 2 - 16 for x2+8x x 2 + 8 x in the equation x2+y2+8x−6y=24 x 2 + y 2 + 8 x - 6 y = 24 . (x+4)2−16+y2−6y=24 ( x + 4 ) 2 - 16 + y 2 ...

Step-by-step explanation:

5 0
3 years ago
in a class the ratio of boys to girls is 3/2. if there are 12 boys in the class, how many girls are there? ​
Travka [436]

Answer:

8

Step-by-step explanation:

3 times 4 is 12 and 2 times 4 is 8

4 0
2 years ago
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What is the area of the figure?
Vikentia [17]


1) Striangle = 1/2 * (12-8) * 4 = 1/2 * 4 * 4 = 8 km^2

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4 0
3 years ago
The lines represented by the equations y = -X – 3 and
xz_007 [3.2K]

The equations y = -x -3 and 5y + 5x = -15 represents the same line option 'the same line' is correct.

<h3>What is linear equation?</h3>

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

We have two equation of the line:

y = -x -3 and

5y + 5x = -15

From the equation 5y + 5x = -15:

Divide by 5 on the above equation:

y + x = -3

or

y = -x -3

The two equations y = -x -3 represents the same line.

Thus, the equations y = -x -3 and 5y + 5x = -15 represents the same line option 'the same line' is correct.

Learn more about the linear equation here:

brainly.com/question/11897796

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3 0
1 year ago
What is the factored form of the expression? 4x^2-81y^2
Tasya [4]
4x^2-81y^2 

(2x)^2-(9y)^2&#10; 

(2x+9y)(2x-9y)
4 0
3 years ago
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