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DedPeter [7]
3 years ago
14

I need help this is the question.

Mathematics
1 answer:
tino4ka555 [31]3 years ago
4 0

Let <em>x</em> = 3.191919…. Then 100<em>x</em> = 319.191919…, and we have

100<em>x</em> - <em>x</em> = 319.191919… - 3.191919…

99<em>x</em> = 316

<em>x</em> = 316/99

Next, we have

316 = 297 + 19 = 3 × 99 + 19

so

316/99 = (3 × 99 + 19)/99 = 3 + 19/99

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|x|+5=18 <br> 5 or - 5 <br> 13 or - 13 <br> 18 or - 18 <br> 23 or - 23
slava [35]
Just transpose the 5 to the right side of 18 so it will look like this, /x/ = 18 - 5
Then get the difference and it would be 13. So to check this out if it is correct, substitute x for the value of 13 and it will look like this.
13 + 5 = 18
I hope my answer helped you.
6 0
3 years ago
Simplify the expression where possible.<br><br> (3b 3) 4<br><br> .
goblinko [34]

Answer: 36b

Step-by-step explanation:

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8 0
3 years ago
Help me...... question: 12 + 2x - 14x + 8=
riadik2000 [5.3K]

Answer:

-12x+20

Step-by-step explanation:

Subtract similar numbers:

2x - 14x = -12x

Product:

12 - 12x + 8

Group the terms that are similar:

-12x + 12 + 8

Add the numbers:

-12x + 20

Final answer:

-12x + 20

4 0
3 years ago
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-Dominant- [34]
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