Violet580
Violet580 Violet580
  • 25-02-2015
  • Mathematics
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If your paper has 128 rectangles, how many folds did you make?

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naǫ
naǫ naǫ
  • 25-02-2015
If you fold a piece of paper, it will have 2 rectangles.
If you fold it again, it will have 4 rectangles.
If you fold it again, it will have 8 rectangles.
So, if you fold it n times, it will have 2^n rectangles.

[tex]2^n=128 \\ 2^n=2^7 \\ n=7[/tex]

If your paper has 128 rectangles, you made 7 folds.
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