Return to Video

Converting decimals to percents (ex 2)

  • 0:01 - 0:06
    Let's see if we can write 1.501 as a percentage.
  • 0:06 - 0:11
    Now, we really just want to write this quantity, as something over 100.
  • 0:11 - 0:16
    So, what we can do is, we can say that this is the same thing as 1.501 over 1.
  • 0:16 - 0:22
    We haven't changed it's value, now let's multiply it times 100 over 100.
  • 0:22 - 0:25
    When we do this product, and I haven't changed the value,
  • 0:25 - 0:27
    this just multiplying something times one.
  • 0:27 - 0:30
    But, when we do it we're going to change the way that we're representing it.
  • 0:30 - 0:35
    The denominator now, is going to be 1 times 100, so that's pretty straightforward.
  • 0:35 - 0:37
    That's just going to be 100.
  • 0:37 - 0:42
    And then the numerator, we're going to want to multiply 1.501 times 100.
  • 0:42 - 0:44
    And so, this is going
  • 0:44 - 0:46
    If we multiply this times 10,
  • 0:46 - 0:47
    we would move the decimal one over,
  • 0:47 - 0:49
    we want to be multiplied by hundreds,
  • 0:49 - 0:50
    we want to multiply by 10 again.
  • 0:50 - 0:53
    So we going to more the decimal over to the right twice.
  • 0:53 - 0:56
    We're multiplying it by 10, twice.
  • 0:56 - 0:58
    Or you're multiplying it by 100.
  • 0:58 - 0:59
    This is multiplying by 10,
  • 0:59 - 1:00
    this is multiplying it by 100.
  • 1:00 - 1:02
    So this is where the decimals are going to sit now.
  • 1:02 - 1:06
    So we're going to get 150.1
  • 1:06 - 1:12
    And so we've rewritten 1.501 as 150.1 over 100,
  • 1:12 - 1:15
    or 150.1 per 100.
  • 1:15 - 1:21
    Let me write that, 150.1 per... per 100
  • 1:21 - 1:26
    Which is the same thing as 150.1 per cent
  • 1:26 - 1:33
    Which is the same thing as 150.1%
  • 1:33 - 1:34
    And we're done.
  • 1:34 - 1:36
    And essentially what we are doing
  • 1:36 - 1:37
    - if you really want to simplify the process -
  • 1:37 - 1:41
    we're multiplying this by 100 to get 150.1
  • 1:41 - 1:44
    and then we're saying that is the percentage.
  • 1:44 - 1:47
    So you wanna make sure that you write % there or the % symbol.
Title:
Converting decimals to percents (ex 2)
Description:

Converting decimals to percents (ex 2)

more » « less
Video Language:
English
Duration:
01:48
Andras Fuchs edited английски език subtitles for Converting decimals to percents (ex 2)
syonverma added a translation

English subtitles

Revisions Compare revisions