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Naddik [55]
3 years ago
15

1/5(2x-10)+4x=-3(1/5x+4)

Mathematics
2 answers:
Art [367]3 years ago
4 0
The question gives us the equation \frac{1}{5}(2x-10)+4x=-3(\frac{1}{5}x+4) and are told to solve for the variable x. To do this, we need to simplify the equation by using the distributive property. This gives us \frac{2}{5}x-2+4x=-\frac{3}{5}-12. Now, we combine like terms. When we do this, we get \frac{22}{5}x-2=-\frac{3}{5}x-12. Next, we add 12 to both sides. This gives us \frac{22}{5}x+10=-\frac{3}{5}x. Then, we subtract \frac{22}{5} from both sides and simplify. This gives us 10=-5x. Now, we divide both sides by -5 to get x = -2. Therefore, the answer to this problem is \boxed{x=-2}. Hope this helped!
borishaifa [10]3 years ago
3 0
First solve to your equation by step by step.

1/5(2x-10)+4x=-3(1/5x+4)
= x=-2

Answer is x=-2

It will help you.
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Ugo [173]

draw a rectangle around it:

the widest part is from about -3 to 2 which is 5 units wide

height is from 3 to -4, which is 7 units

5*7 = 35

the top and bottom are angled so you can subtract a little for that

 so I would estimate around 32 square units

7 0
3 years ago
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Rationalize the denominator of square root of negative 49 over open parentheses 7 minus 2 i close parentheses minus open parenth
navik [9.2K]

The answer is the option d, which is: d) \frac{-77+21i}{130}

The explanation for this problem is shown below:

1. Smplify the denominator and rewrite the numerator in this form:

\frac{7i}{7-2i-4-9i} \\\frac{7i}{3-11i}

2. Multiply the denominator and the numerator by the conjugated (3+11i) and simplify the expression, as following:

\frac{7i(3+11i)}{(3-11i)(3+11i)} \\ \frac{21i+77i^{2}}{121+9}  \\ \frac{-77+21i}{130}

3. As you can see, you obtain the expression shown in the option mentioned above.

3 0
3 years ago
Solve each equation for the unknown <br>1. 5 + y = 7.<br>2. 3.8 = a + 2.5<br>5. + p = 9 1/3 ​
Alexxandr [17]

Answer:

1. 5 + y = 7

⇒ y = 7 - 5

⇒<u>y = 5</u>

2.  3.8 = a + 2.5

⇒ a = 2.5 - 3.8

⇒ <u>a = -1.3</u>

3. 5 + p = 9 1/3 ​

⇒ p = 9 1/3 - 5

⇒ p = 28/3 - 5

⇒ p = 28/3 - 15/3

⇒ p = 13/3

⇒<u> </u><u>p = 4 1/3</u>

3 0
2 years ago
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Not sure how to do this. (I'm aware this is wrong lol)
Bezzdna [24]
I think the answer is 80 degrees. Think about it like you're moving the chunk with 100 degrees already filled in, to the space where you're trying to find the amount since they're the same. Vertical angles are supplementary and are equal to 180. So, 100+x = 180. x would equal 80 degrees.
3 0
3 years ago
David walked 0.5 kilometer from his home to the library which fraction is equivalent to 0.5
dusya [7]

Answer:

1/2

Step-by-step explanation:

.5=1/2

5 0
3 years ago
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