Need math(s) help, please!

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mouse
Posts: 231
Joined: Sat Jul 05, 2008 12:04 am

Need math(s) help, please!

Post by mouse »

Jake needs help with his homework, and I, I am embarrassed to admit, am clueless. This is 7th grade pre-algebra. He was absent on Monday and Tuesday so he's missed a couple lessons. Anyway, here is the question:
Two numbers are relatively prime. If the first number is multiplied by 3, the result is divisible by 6. Can the second number be an odd number? Explain your reasoning.
If anyone could explain this to us, we would be ever so grateful.

Thanks!
"The massage area. Why? To increase the nudity." ~Joss Whedon

"It's a miraculous thing, the hoohoo. I once saw a woman fit one of those minicars full of clowns in her hoohoo." ~Ghost

"Two by two, boobs of blue." ~MenleyNin
mouse
Posts: 231
Joined: Sat Jul 05, 2008 12:04 am

Re: Need math(s) help, please!

Post by mouse »

It's ok, we've got our answer (I cheated on you all with the Curly board, and they were quicker with an answer - *gasp*).
"The massage area. Why? To increase the nudity." ~Joss Whedon

"It's a miraculous thing, the hoohoo. I once saw a woman fit one of those minicars full of clowns in her hoohoo." ~Ghost

"Two by two, boobs of blue." ~MenleyNin
MdmeAlbertine
Posts: 24
Joined: Tue Aug 05, 2008 9:30 pm

Re: Need math(s) help, please!

Post by MdmeAlbertine »

Then for pete's sake, post the answer!

I got as far as thinking the second number almost has to be an odd number, because the first number has to be an even number in order to be multiplied by three and still divisible by six, and if the first number is even, then the second number has to be odd, otherwise they'd both be divisible by two.
mouse
Posts: 231
Joined: Sat Jul 05, 2008 12:04 am

Re: Need math(s) help, please!

Post by mouse »

MdmeAlbertine wrote:Then for pete's sake, post the answer!

I got as far as thinking the second number almost has to be an odd number, because the first number has to be an even number in order to be multiplied by three and still divisible by six, and if the first number is even, then the second number has to be odd, otherwise they'd both be divisible by two.
Yes.
"The massage area. Why? To increase the nudity." ~Joss Whedon

"It's a miraculous thing, the hoohoo. I once saw a woman fit one of those minicars full of clowns in her hoohoo." ~Ghost

"Two by two, boobs of blue." ~MenleyNin
MdmeAlbertine
Posts: 24
Joined: Tue Aug 05, 2008 9:30 pm

Re: Need math(s) help, please!

Post by MdmeAlbertine »

Oh yeah, I still got it. [nods]

:D
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