| Re: Math Formula Question - Need Ideas [message #184535 is a reply to message #184526] |
Mon, 06 January 2014 19:47  |
Thomas 'PointedEars'
Messages: 701
Registered: October 2010
Karma:
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Senior Member |
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Adrienne Boswell wrote:
> Thomas 'PointedEars' Lahn <PointedEars(at)web(dot)de> wrote
>> Adrienne Boswell wrote:
>>> Someone goes to a store and has $100.00 worth of items. The merchant
>>> gives the customer a 10% discount, so only $90.00 is sent to the
>>> bank. Of the original amount, $10.00 goes to the customer for the
>>> discount, $80.00 goes to the merchant, $10.00 goes for a processing
>>> fee. But those amounts have to be calced on the original amount, not
>>> what the bank got. I need a formula to find the original amount if I
>>> have the percentage (10%) and the amount the bank got ($90.00). I
>>> know in my head that the original amount is $100.00, but I have to do
>>> it programatically.
>>>
>>> I know this is probably dead simple, but I just can't get my head
>>> around it.
>>
>> Do your own homework.
>>
>> [You cannot be serious asking a question regarding simple arithmetic
>> (percentage calculation, for crying out loud) in a newsgroup for a
>> programming language — without showing any attempt to solve it by
>> yourself, I should add.]
>
> Yes, I can be serious asking a question like this. Have you ever looked
> at something you spelled correctly, and it doesn't look right?
> Sometimes, I think something is harder than it is, and confuse myself.
> That's what happened here.
Sigh. [psf 10.1] You have a problem with basic arithmetic, not PHP. Why
are you asking in a PHP newsgroup (other than to troll here)? *At least*
you should have the decency to ask in a *math* newsgroup (where people will
tell you, iff they do not ignore you, that you learn these things in
highschool – or its national equivalent).
Please read <http://www.catb.org/~esr/faqs/smart-questions.html> before you
post again.
PointedEars
--
realism: HTML 4.01 Strict
evangelism: XHTML 1.0 Strict
madness: XHTML 1.1 as application/xhtml+xml
-- Bjoern Hoehrmann
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