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valkas [14]
3 years ago
10

0.21212121… as a fraction

Mathematics
2 answers:
sasho [114]3 years ago
3 0
It can not be a fraction
RUDIKE [14]3 years ago
3 0
<h3>Answer:  21/99</h3>

Work Shown:

x = 0.212121...

100x = 21.212121....

Subtract the equations straight down. This means we subtract the left hand sides together, and the right hand sides are handled separately.

  • Left hand sides: 100x-x becomes 99x
  • Right hand sides: 21.212121.... - 0.212121... becomes 21

After those sets of subtractions, we are left with 99x = 21.

This solves to x = 21/99 when dividing both sides by 99 to isolate x.

Therefore, 21/99 = 0.212121...

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4 0
2 years ago
in an isosceles right triangle the hypotenuse is 8.4 in find the length of a side to the nearest tenth of an inch
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<span>2<span>a2</span>=<span>8.42</span></span>

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5 0
4 years ago
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antoniya [11.8K]

Answer:

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hope this helps

have a good day :)

Step-by-step explanation:

3 0
3 years ago
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