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hichkok12 [17]
4 years ago
6

|20x|=2|2x+8| please show all steps and both answers

Mathematics
1 answer:
lukranit [14]4 years ago
7 0

Step-by-step explanation:

20x = 4x +16

16x = 16

x=1

multiply the 2 into the absolute value bars. check if there are negatives. if there aren't, bars can be removed. solve as normal

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Kelly tells you that when variables are in the denominator, the equation becomes unsolvable. "There is a value for x that makes
MrMuchimi
<span>Let's try to solve the equation: 1/x + 1/(x)² = 2
Kelly says that it is not possible because there are the variable x and x² in the denominators. Kelly is correct in that there is a value of x that makes the denominator zero. In this case, x = 0 makes the denominator of 1/x zero and also makes the denominator of 1/x² = 0. 
</span>But, we want to look for values of x that will make the whole equation true, not the values of x that make the denominators zero. 1/x + 1/(x)² = 2

(x +1)/(x)² = 2 

Multiply through by x² with the proviso that x is not 0. 

Then, (x + 1) = 2x²

At this point, we are looking for solutions to (x + 1) = 2x² which is related to but not identical to the original equation. So, we will have to check any answers we get to (x + 1) = 2x² against the original problem: 1/x + 1/(x)² = 2

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3 years ago
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tiny-mole [99]

Answer:

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Step-by-step explanation:

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7 0
2 years ago
Did I put in the correct answer?
BlackZzzverrR [31]
The answers are right! Good job!
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4 years ago
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6% of it is 27<br> I need help. Someone please give me a explanation of how to do this.
Ghella [55]

Answer:

You take 6% of a number and the resulting number is 27.

To do this you need to change the percent into a fraction.

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Solve for x

6 A = 27x100

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Check your answer:

6/100 (A) = 27

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Step-by-step explanation:

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timofeeve [1]

Answer:

1.15 or \frac{15}{13}

Step-by-step explanation:

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2. Let's plug in the numbers: \frac{14--1}{13-0}

4. \frac{15}{13} ≈ 1.1538

6 0
2 years ago
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