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Reply #60 posted 07/26/09 7:55pm

heybaby

falloff I can't believe this is the most successful thread I've ever had. I'ts not even my thread actually lol
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Reply #61 posted 07/26/09 8:20pm

kimrachell

i suck at math! mad
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Reply #62 posted 07/28/09 11:15am

NDRU

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AlexdeParis said:

NDRU said:

You can set up a ratio

66.666667/100 = X/45

and subtract x from 45

But again, you can do that in your head if you recognize 66-2/3% is equal to 2/3.


ah, right!
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Reply #63 posted 07/28/09 11:17am

NDRU

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retina said:

The media often relies on calculations with percentages to make an impact these days. You see headlines like "Left hand index finger cancer has increased by 200% in the last year!" and people think "Oh no, left hand index finger cancer is getting out of control! I'd better have a checkup!" but the crucial information of how many cases there are has been left out. It could be 1 case worldwide that increased to 3 cases for all we know, in which case there surely is no need to worry. So I think it can be quite misleading.

Counting with percentages can be confusing in other cases too. Say that you have something that loses 90% of its value. How much, in per cent, would the value need to increase by from there to regain its original value? 90%? Nope, try 900%... So these days when they say that stocks have gained more than 40% (or whatever) in the last few months that sounds great, but it's from such low levels comparatively speaking that the valuations still aren't that impressive.


I see Retina's presence in GD has increased in the third quarter of 2009 by an infinite percent!
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Reply #64 posted 07/28/09 12:16pm

Genesia

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Are you sure that's exactly how the problem reads? Because it doesn't make any sense. "66-2/3%" of what? Or is it "(66 + 2/3(66))-45" - which would be 66+44=110-45=65?

2/3% by itself doesn't make any sense - because they're asking for a percent of a percent. 2/3 is a percent (.66666), which means they're saying .66666%%
We don’t mourn artists because we knew them. We mourn them because they helped us know ourselves.
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Reply #65 posted 07/28/09 12:27pm

johnart

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Vendetta1 said:

thekidsgirl said:




touched that is beautiful....I love math
So do I. love


When I know for certain that the minor has left this thread I will tell you how hot I thought it was that you could figure that.
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Reply #66 posted 07/28/09 12:39pm

AlexdeParis

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Genesia said:

Are you sure that's exactly how the problem reads?


The problem was restated later in the thread:

heybaby said:

What is 66 and 2/3% less than 45?
"Whitney was purely and simply one of a kind." ~ Clive Davis
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Reply #67 posted 07/28/09 12:57pm

Genesia

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AlexdeParis said:

Genesia said:

Are you sure that's exactly how the problem reads?


The problem was restated later in the thread:

heybaby said:

What is 66 and 2/3% less than 45?


Okay. So, basically they want to know what is 33-1/3% (or one-third) of 45.

The answer is 15.
We don’t mourn artists because we knew them. We mourn them because they helped us know ourselves.
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Reply #68 posted 07/28/09 1:00pm

AlexdeParis

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Genesia said:

AlexdeParis said:



Okay. So, basically they want to know what is 33-1/3% (or one-third) of 45.

The answer is 15.

nod
"Whitney was purely and simply one of a kind." ~ Clive Davis
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Reply #69 posted 07/28/09 1:27pm

NDRU

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Genesia said:

AlexdeParis said:



Okay. So, basically they want to know what is 33-1/3% (or one-third) of 45.

The answer is 15.



that answer is sooo page one!
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Reply #70 posted 07/28/09 1:35pm

Genesia

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NDRU said:

Genesia said:



Okay. So, basically they want to know what is 33-1/3% (or one-third) of 45.

The answer is 15.



that answer is sooo page one!


I didn't read the whole thing. Math bores me. shrug lol
We don’t mourn artists because we knew them. We mourn them because they helped us know ourselves.
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Reply #71 posted 07/28/09 5:53pm

ThreadBare

Say, if you're reading a math book for the summer break, be sure to post on my summer reading thre--

oh, never mind. neutral
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Reply #72 posted 07/28/09 5:56pm

Moonbeam

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How did I miss this thread? mad
Feel free to join in the Prince Album Poll 2018! Let'a celebrate his legacy by counting down the most beloved Prince albums, as decided by you!
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Forums > General Discussion > Percent of Change: Increase and Decrease math problems