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    jaigant's Avatar
    jaigant Posts: 3, Reputation: 1
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    #1

    Apr 15, 2010, 03:52 PM
    How figure out if item is $80 and it is 10% off how do you calculate
    If an item in a clothing store is $80 and it is 10% off how do you calculate that
    cdad's Avatar
    cdad Posts: 12,700, Reputation: 1438
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    #2

    Apr 15, 2010, 05:13 PM

    Does the item already include the discount or is the discount taken at the register?
    hheath541's Avatar
    hheath541 Posts: 2,762, Reputation: 584
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    #3

    Apr 15, 2010, 05:19 PM

    any percentage off is that many cents off each dollar. So, 10% off is 10 cents off each dollar. Just multiply that by the price and subtract the number you get from the original price to get the sale price.

    p=price
    s=sale percentage in decimal form (ie. 10% = .1)
    d=the amount deducted by the sale
    f=final sale price

    p x s = d
    p - d = f
    jaigant's Avatar
    jaigant Posts: 3, Reputation: 1
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    #4

    Apr 16, 2010, 11:50 AM
    Quote Originally Posted by califdadof3 View Post
    Does the item already include the discount or is the discount taken at the register?
    This is the discount taken at the register. I want to see the figuration how it is calculated
    hheath541's Avatar
    hheath541 Posts: 2,762, Reputation: 584
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    #5

    Apr 16, 2010, 12:01 PM

    I posted the math. I just didn't plug in the numbers.
    ArcSine's Avatar
    ArcSine Posts: 969, Reputation: 106
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    #6

    Apr 16, 2010, 01:05 PM
    Jaigant, the wording of your question leaves room for a couple of interpretations. If 80 bucks is the 'pre-discount' pricing, then the previous posts give you what you need.

    On the other hand, you might be asking, "this item's on sale at $80, and this price represents a 10% discount off of its usual price, so what was the original price?"

    If that's the case, then 80 is 90% of the original price P. Or...

    80 = 0.9P

    To find P, divide both sides by 0.9...



    To wrap it up, just confirm for yourself that if you knock 10% off a price of $88.89 you'll end up with a sale price of $80. I'll leave that fun for you.
    pready's Avatar
    pready Posts: 3,197, Reputation: 207
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    #7

    Apr 18, 2010, 03:27 PM

    $80 * 10% = $8
    $80 - $8 = $72

    or $80 - 10% = $72
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
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    #8

    Apr 18, 2010, 07:14 PM

    Ambiguous

    Either the problem is:

    10% of $80 is ___
    Or

    $80 is 10% of ____

    Or even

    Take an extra 10% off $80

    Can't tell from your wording.
    cdad's Avatar
    cdad Posts: 12,700, Reputation: 1438
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    #9

    Apr 18, 2010, 07:21 PM
    Quote Originally Posted by KeepItSimpleStupid View Post
    Ambiguous

    Either the problem is:

    10% of $80 is ___
    or

    $80 is 10% of ____

    or even

    Take an extra 10% off of $80

    Can't tell from your wording.
    It had already been stated quote" this is the discount taken at the register. i want to see the figuration how it is calculated" end quote

    And hheath already had given the solution to it. Im not sure why it keeps being posted as unsolved ?
    hheath541's Avatar
    hheath541 Posts: 2,762, Reputation: 584
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    #10

    Apr 18, 2010, 07:33 PM

    Because the question needs answered by twelve different people in twelve different ways because none of them bothered to read past the first post.
    ArcSine's Avatar
    ArcSine Posts: 969, Reputation: 106
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    #11

    Apr 19, 2010, 03:11 AM
    It's not being posted as 'unsolved'... it's being helpfully (and correctly) pointed out that the question's wording is ambiguous.

    At this point I'm sure you'll show us all how the wording clearly precludes a situation in which a 10% discount is taken 'at the register' on a $88.89 item, resulting in the item being purchased for $80.

    We'll wait...
    morgaine300's Avatar
    morgaine300 Posts: 6,561, Reputation: 276
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    #12

    Apr 21, 2010, 03:46 AM

    Have to agree with ArcSine. Hheath, I'm sure people did read the first post, which was indeed ambiguous and left the issue unclear. It was unclear to me as well. (I doubt seriously every single one of us is just ignoring what the first post said.)

    And I do not think saying the discount is "taken at the register" really has any meaning, because that may be the OP's interpretation of it, which may not even be correct.

    This is a situation where we need to see EXACTLY how the original problem was stated, and not a paraphrased version by OP. Sometimes an incomplete or paraphrased version will work, but this isn't one of those times.

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