Who likes math?

coopersmydog · #1 09-21-2005, 11:17 PM

Trying to do some homework and my brain is fried. Am I even close here?

There are 8 different statistics books, 6 different geometry books, and 3
different trigonometry books. A student must select one book of each type.
How many different ways can this be done?

Is the answer 8/17 * 6/16 * 3/15

Sooga · #2 09-21-2005, 11:19 PM

when you do math problems like this, you should ask yourself when you get your answer, 'does this make sense?'

How can you get a fractional number of ways to do something?

#3 09-21-2005, 11:21 PM

8 * 6 * 3

wtf were you dividing by?

coopersmydog · #4 09-21-2005, 11:23 PM

I came up with 144 the first time I did it. But since they can only choose one of each book I thought it was wrong. For instance isn't 2 statistics books and 1 geometry book one of the possibilities of the 144? That isn't 1 of each book.

Josh W · #5 09-21-2005, 11:23 PM

You must be a math teacher.

bravos1 · #6 09-21-2005, 11:26 PM

try the Science, Math, Philosophy forum.. you'll get much better answers

coopersmydog · #7 09-21-2005, 11:34 PM

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try the Science, Math, Philosophy forum.. you'll get much better answers

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I just posted it there, thanks.

istewart · #8 09-21-2005, 11:40 PM

[ QUOTE ]
when you do math problems like this, you should ask yourself when you get your answer, 'does this make sense?'

How can you get a fractional number of ways to do something?

[/ QUOTE ]

Hahaha.

coopersmydog · #9 09-21-2005, 11:44 PM

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How can you get a fractional number of ways to do something?

[/ QUOTE ]

True, I'm an idiot. Need to stop drinking spotted cow and doing homework.

#10 09-21-2005, 11:44 PM

[ QUOTE ]
[ QUOTE ]
when you do math problems like this, you should ask yourself when you get your answer, 'does this make sense?'

How can you get a fractional number of ways to do something?

[/ QUOTE ]

Hahaha.

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