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zlopas [31]
2 years ago
12

When 4((0.5 x + 2.5 y minus 0.7 x minus 1.3 y + 4)) is simplified, what is the resulting expression?

Mathematics
1 answer:
Lorico [155]2 years ago
8 0

Answer:

-0.8x + 4.8y + 16          

Step-by-step explanation:

We have to simplify the given expression:

4(0.5x + 2.5y-0.7x-1.3y+4)

First we group all the like terms of x.

4((0.5x-0.7x) + 2.5y-1.3y+4))\\=4(-0.2x+ 2.5y-1.3y+4)

Next we group all the like terms of y.

4(-0.2x+ (2.5y-1.3y)+4)\\=4(-0.2x+1.2y+4)

Now, we use distributive property for the multiplication,

4(-0.2x+1.2y+4)\\=(4\times -0.2x) + (4\times 1.2y) + (4\times 4)\\=-0.8x + 4.8y + 16

is the required simplified expression.

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4 0
2 years ago
3x − 15= 3x + 15<br> what is x?
Marina CMI [18]

We are given the following equation and want to find the possible values of x

3x-15=3x+15

Subtract both sides by 3x

3x-15-3x=3x+15-3x

-15=15

Now, we have this weird equation. Since -15 is NOT equal 15 and there is no other way we could have solved for x, there is no real solution to the given equation.

In other words, there is no value of x that makes the equation true.

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3 years ago
What is the equation of the line that passes through the point (-4, 7) and has an
labwork [276]

Answer:

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Step-by-step explanation:

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7 0
2 years ago
The problem -2x=9 equals the answer x=-4.5...is that correct or incorrect?
erastovalidia [21]
-2x=9|:(-2)\\&#10;x=-4.5&#10;

Yes.
5 0
2 years ago
What is the MAD of this data ? Round to the nearest hundredth. 7, 14, 15, 9, 11, 14, 11, 10, 17​
Vladimir79 [104]
<h2>2.67</h2>

Step 1 :

Find the mean of the data :

(2+4+6+8) / 4 = 20/4 = 5

Step 2 :

Find the distance between each data and mean.

Distance between 2 and 5 is 3

Distance between 4 and 5 is 1

Distance between 6 and 5 is 1

Distance between 8 and 5 is 3

Step 3 :

Add all the distances :

3+1+1+3 = 8

Step 4 :

Divide it by the number of data :

8 / 4 = 2

2 is the average absolute deviation.

<h2>So hence, your answer is 2.67</h2>

"The beautiful thing about learning is that no one can take it away from YOU"

B.B.King

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2 years ago
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