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Hi,
my kid is doing maths and I am watching over but absolutely useless.
we have a problem and the answer and trying to find the way to the answer.
we manages most of the questions but one I just cannot get.

2 divided by square root of 10 gets us to square root of 10 divided by 5.

How on earth did the square root go from bottom to top......
simple, step by step welcome!
Cheers
Ant

news.btinternet.com wrote:

> 2 divided by square root of 10 gets us to square root of 10 divided
> by 5.

Multiply the numerator & denominator by the square root of ten and then
reduce the fraction 2/10 to 1/5.

For easy ascii, let the square root of 10 be expressed as R

2/R X R/R = 2R/Rsquared

The square root of 10 squared is 10.

2R/10 = R/5 or the square root of 10 divided by 5.

--
Mike Easter

"news.btinternet.com" <> wrote in message
news:...
> Hi,
> my kid is doing maths and I am watching over but absolutely useless.
> we have a problem and the answer and trying to find the way to the
> answer.
> we manages most of the questions but one I just cannot get.
>
> 2 divided by square root of 10 gets us to square root of 10 divided
> by 5.
>
> How on earth did the square root go from bottom to top......
> simple, step by step welcome!
> Cheers
> Ant
square root(10) = 3.16227766

so 2 divided by etc

Bookmark this site for his maths
http://www.google.com/search?q=defin...%3D+3.16227766

Hi,
Many thanks.... surprisingly enough... I understood your explanation!
Am very good at French if that can help one day!
Ant
"Mike Easter" <> wrote in message
news:...
> news.btinternet.com wrote:
>
>> 2 divided by square root of 10 gets us to square root of 10 divided
>> by 5.
>
> Multiply the numerator & denominator by the square root of ten and then
> reduce the fraction 2/10 to 1/5.
>
> For easy ascii, let the square root of 10 be expressed as R
>
> 2/R X R/R = 2R/Rsquared
>
> The square root of 10 squared is 10.
>
> 2R/10 = R/5 or the square root of 10 divided by 5.
>
> --
> Mike Easter
>
>

On Tue, 18 Sep 2007 16:58:17 +0100, "news.btinternet.com"
<> wrote:

>Hi,
>my kid is doing maths and I am watching over but absolutely useless.
>we have a problem and the answer and trying to find the way to the answer.
>we manages most of the questions but one I just cannot get.
>
>2 divided by square root of 10 gets us to square root of 10 divided by 5.
>
>How on earth did the square root go from bottom to top......
>simple, step by step welcome!
>Cheers
>Ant
>
I find it hard to believe your kid is doing maths(?) (with his math
book) and there isn't an example.
http://www.curriki.org

There are some examples of basic simplification, but out of the 20
exercices, this one elluded us.....
sorry if we are not perfect at Math!!!
"who'sthat" <who'sthat@don'tknow.com> wrote in message
news...
> On Tue, 18 Sep 2007 16:58:17 +0100, "news.btinternet.com"
> <> wrote:
>
>>Hi,
>>my kid is doing maths and I am watching over but absolutely useless.
>>we have a problem and the answer and trying to find the way to the answer.
>>we manages most of the questions but one I just cannot get.
>>
>>2 divided by square root of 10 gets us to square root of 10 divided by 5.
>>
>>How on earth did the square root go from bottom to top......
>>simple, step by step welcome!
>>Cheers
>>Ant
>>
> I find it hard to believe your kid is doing maths(?) (with his math
> book) and there isn't an example.
> http://www.curriki.org
>

On Tue, 18 Sep 2007 11:44:17 -0500, who'sthat
<who'sthat@don'tknow.com> wrote:

>I find it hard to believe your kid is doing maths(?) (with his math
>book) and there isn't an example.
>http://www.curriki.org

I believe 'maths' is a limey expression.
--
To reply via e-mail, remove The Obvious from my e-mail address.

Evan Platt wrote:

> On Tue, 18 Sep 2007 11:44:17 -0500, who'sthat
> <who'sthat@don'tknow.com> wrote:
>
>>I find it hard to believe your kid is doing maths(?) (with his
math
>>book) and there isn't an example.
>>http://www.curriki.org
>
> I believe 'maths' is a limey expression.

Yes, they come in all colors and sizes over there.

--
Blinky
Killing all posts from Google Groups
The Usenet Improvement Project:
http://improve-usenet.org <------------- New Site Aug 28

On 2007-09-18, news.btinternet.com <> wrote:
> There are some examples of basic simplification, but out of the 20
> exercices, this one elluded us.....
> sorry if we are not perfect at Math!!!

Now I'm puzzled; why is

"the square root of 10, divided by 5"

'simpler' than

"2, divided by the square root of 10"?

There might be some point in being given

2 ÷ X = X ÷ 5

and being asked to find the value of X; or even being asked to 'prove'
that the two expressions have the same value. But both expressions are
equally 'simple' as far as I can see.

--
-- ^^^^^^^^^^
-- Whiskers
-- ~~~~~~~~~~

On Tue, 18 Sep 2007 19:51:40 +0100, Whiskers
<> wrote:

>On 2007-09-18, news.btinternet.com <> wrote:
>> There are some examples of basic simplification, but out of the 20
>> exercices, this one elluded us.....
>> sorry if we are not perfect at Math!!!
>
>Now I'm puzzled; why is
>
> "the square root of 10, divided by 5"
>
>'simpler' than
>
> "2, divided by the square root of 10"?
>
>There might be some point in being given
>
> 2 ÷ X = X ÷ 5
>
>and being asked to find the value of X; or even being asked to 'prove'
>that the two expressions have the same value. But both expressions are
>equally 'simple' as far as I can see.

Looks solved to me. I'll ask my daughter when she gets in