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#1 2012-11-11 04:00:47

BarandaMan
Guest

Inequality Help! Urgent!

9pq < 6pq +6(1-p)(1-q). Implying that 3pq/(1-p)(1-q)  < (less than or equal to) 2


PLEASE explain this somebody! I don't understand how this works? Does it not equal 3<6(1-p)(1-q)?

Please walk me through this. Thanks.

#2 2012-11-11 04:17:08

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 90,758

Re: Inequality Help! Urgent!

Hi BarandaMan;

Do you mean


In mathematics, you don't understand things. You just get used to them.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

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#3 2012-11-11 04:21:40

BarandaMan
Guest

Re: Inequality Help! Urgent!

Yes I do! That is what the answer says but i do not understand how it gets past the 'implies' after rearranging

#4 2012-11-11 04:36:11

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 90,758

Re: Inequality Help! Urgent!

Hi;

Subtract 6pq from both sides.

Divide both sides by 3.

Divide both sides by (1-p)(1-q) provided that p,q are both less than 1.

I do not know where the 3 comes from in your question.


In mathematics, you don't understand things. You just get used to them.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

Offline

#5 2012-11-11 05:09:09

BarandaMan
Guest

Re: Inequality Help! Urgent!

Hey!

That is exactly what I got! Thank you. That is why I am confused, because the 3pq I posted it in the ANSWER BOOK. Which is why I am confused by this!

It cannot be the answer from the inequality!

#6 2012-11-11 05:14:04

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 90,758

Re: Inequality Help! Urgent!

Hi;

The answer book? What is that?


In mathematics, you don't understand things. You just get used to them.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

Offline

#7 2012-11-11 05:20:14

BarandaMan
Guest

Re: Inequality Help! Urgent!

I did the question from a book, and in the back ith as the answers. The first line of my original post shows what the answer is in the textbook. It must be wrong, I will write a letter. It is simple inequality I thought... must be printing error.

#8 2012-11-11 05:39:48

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 90,758

Re: Inequality Help! Urgent!

I would think it is a typo.


In mathematics, you don't understand things. You just get used to them.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

Offline

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