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Math Help - percent of number

  1. #1
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    Question percent of number

    How would I work out 6% of 131?
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  2. #2
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    6% is simply 6/100

    Multiply 6/100 by 131/1.

    You get 786/100. Now, reduce and you have your answer.
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  3. #3
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    I got 0.0786
    Is this right?
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  4. #4
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    You're off by a couple of decimal points.

    You should get 7.86.
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  5. #5
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    How did you get that?
    I'm awful at percentages!
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  6. #6
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    Look:

    6/100 * 131/1.

    Multiply the top 131 * 6 = 786
    Multiply the bottom 100 * 1 = 100

    Now you have 786/100


    How many times does 100 go into 786? 7

    100 * 7 = 700

    786 - 700 = 86.

    Therefore 86 is what goes behind the decimal point.
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  7. #7
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    Question:
    6% of 131?

    Ans:
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  8. #8
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    Quote Originally Posted by nikconsult View Post
    Question:
    6% of 131?

    Ans:
    You left out the 7. It's 7.86.

    -Dan
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  9. #9
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    When dividing by 10, 100, 1000 ... etc

    You move the decimal place by the number of zeros.

    786. -- In your case we need to move the decimal point to the left because were dividing (you move it to the right, when multiplying)

    So when dividing by 100 we would move the decimal place over to the left 2 times.

    7.86

    If we divided by 10

    78.6

    by 1000

    0.786

    by 10,000

    0.0786 -- If we multiply 0.0786 by 100,000 the decimal place moves to the right 5 times

    7860. or just 7860

    Hope this helps.
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  10. #10
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    Quote Originally Posted by mathsnoob View Post
    How would I work out 6% of 131?
    6\% = \frac{6}{100} = 0.06

    0.06 \times 131 = 7.86
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  11. #11
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    what is the % of $68.00 and .30 is being taken off

    Quote Originally Posted by mathsnoob View Post
    How did you get that?
    I'm awful at percentages!
    what is the precent of $68.00 when the precent is .30%
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  12. #12
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    Unhappy

    what is the % of $68. and 30% is being taken off
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  13. #13
    Moo
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    Hello,

    Is it .30% or 30% ?
    One will be 30/10000, the other will be 30/100

    X% of Y is always X*Y/100

    This means here that it's 68*30%=68*30/100=20.40$
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