Velocity Reviews > Help with basic math

# Help with basic math

news.btinternet.com
Guest
Posts: n/a

 09-18-2007
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

Mike Easter
Guest
Posts: n/a

 09-18-2007
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

meerkat
Guest
Posts: n/a

 09-18-2007

"news.btinternet.com" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> 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
> 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

news.btinternet.com
Guest
Posts: n/a

 09-18-2007
Hi,
Many thanks.... surprisingly enough... I understood your explanation!
Am very good at French if that can help one day!
Ant
"Mike Easter" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> 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
>
>

who'sthat
Guest
Posts: n/a

 09-18-2007
On Tue, 18 Sep 2007 16:58:17 +0100, "news.btinternet.com"
<(E-Mail Removed)> 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

news.btinternet.com
Guest
Posts: n/a

 09-18-2007
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(E-Mail Removed)...
> On Tue, 18 Sep 2007 16:58:17 +0100, "news.btinternet.com"
> <(E-Mail Removed)> 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
>

Evan Platt
Guest
Posts: n/a

 09-18-2007
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.
--

Guest
Posts: n/a

 09-18-2007
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.

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

Whiskers
Guest
Posts: n/a

 09-18-2007
On 2007-09-18, news.btinternet.com <(E-Mail Removed)> 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
-- ~~~~~~~~~~

who'sthat
Guest
Posts: n/a

 09-18-2007
On Tue, 18 Sep 2007 19:51:40 +0100, Whiskers
<(E-Mail Removed)> wrote:

>On 2007-09-18, news.btinternet.com <(E-Mail Removed)> 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