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#1476 2014-08-14 09:26:06

mandy jane
Member
Registered: 2010-09-23
Posts: 1,132

Re: Mandy Jane's Corner

Is the answer 22.5% then
Am I right I can log on tomorrow at around 7.00pm ok how am I doing then can you let me know please

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#1477 2014-08-14 09:32:08

bob bundy
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Registered: 2010-06-20
Posts: 7,613

Re: Mandy Jane's Corner

Yes 22.5% is right.  Which means your final score for the evening is 100%

Well done. 

I'll try to log in at 7.00pm, but I am expecting a visitor so I'm not so sure how much time I can give it.

Goodnight.  sleep

Bob


Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

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#1478 2014-08-14 09:36:42

mandy jane
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Registered: 2010-09-23
Posts: 1,132

Re: Mandy Jane's Corner

Good night to you to

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#1479 2014-08-15 05:52:51

mandy jane
Member
Registered: 2010-09-23
Posts: 1,132

Re: Mandy Jane's Corner

Hi bob buddy mandy here can you leave me some sums to do please and I will be on here tomorrow ok

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#1480 2014-08-15 06:38:15

bob bundy
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Registered: 2010-06-20
Posts: 7,613

Re: Mandy Jane's Corner


Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

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#1481 2014-08-16 22:28:01

mandy jane
Member
Registered: 2010-09-23
Posts: 1,132

Re: Mandy Jane's Corner

Hi manfy newland here dose anyone think I should do the gcse maths course with Oxford open leaning or not or no of a better one to do instead if so leave me a message on here

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#1482 2014-08-17 03:34:26

mandy jane
Member
Registered: 2010-09-23
Posts: 1,132

Re: Mandy Jane's Corner

Hi bob buddy or anyone my answers are

(1)  1/4 = 1/4 × 10/100 = 10/100 = 10%

(2)  3/4 =  3/4 × 25/100 = 75/100 = 75%

(3)  1/5 = 1/5 × 20/100  = 20=100 = 20%

(4)  3/5

(5)  1/25 = 1/25 × 4/100 = 40/100 = 40%

(6)  188/400 = 188/40000 ÷ 4/100 = 47/100 = 47%

(7)  44/200

(8)  75/300

(9)  380/1000

(10)  45/200

I have done some hope they are right if not show me why they are wrong please?

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#1483 2014-08-17 03:44:57

bob bundy
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Registered: 2010-06-20
Posts: 7,613

Re: Mandy Jane's Corner

hi Mandy

(1)  1/4 = 1/4 × 10/100 = 10/100 = 10%

Not correct.  This is what you should have done:

(2)  3/4 =  3/4 × 25/100 = 75/100 = 75%

correct!  smile

(3)  1/5 = 1/5 × 20/100  = 20=100 = 20%

correct!  smile

(4)  3/5

You have done 1/5 correctly.  3/5 will be three times as big. 

(5)  1/25 = 1/25 × 4/100 = 40/100 = 40%

Why did you add a zero?  4% was correct.

 
(6)  188/400 = 188/40000 ÷ 4/100 = 47/100 = 47%

correct!  smile

(7)  44/200

The last four questions are all ones you have met in earlier posts so have a look back. 

(8)  75/300

(9)  380/1000

(10)  45/200

Bob


Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

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#1484 2014-08-17 03:56:27

mandy jane
Member
Registered: 2010-09-23
Posts: 1,132

Re: Mandy Jane's Corner

The answers to

(4) 40%

(8)  25%

(9) 38%

(10)  22.5

Am I right

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#1485 2014-08-17 04:03:26

bob bundy
Moderator
Registered: 2010-06-20
Posts: 7,613

Re: Mandy Jane's Corner

8, 9 and 10 are correct.  Well done!  smile

Let's work on setting out number 4 properly:

Here is the code to make your answer look like that:

[math]\frac{3}{5} = \frac{3 \times ??}{5 \times 20} = \frac{**}{100} = **\%[/math]

So you can copy that and all you have to do is put the right numbers in for the ?? and the **

Good luck.  smile

Bob


Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

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#1486 2014-08-17 04:13:46

mandy jane
Member
Registered: 2010-09-23
Posts: 1,132

Re: Mandy Jane's Corner

[Math]\frac {3} {5}=\frac{3\time15}{5\time20}=\frac {45}{100}=45%[math]

Is this right

Last edited by mandy jane (2014-08-17 04:22:33)

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#1487 2014-08-17 04:17:23

mandy jane
Member
Registered: 2010-09-23
Posts: 1,132

Re: Mandy Jane's Corner

Why is it not working?

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#1488 2014-08-17 05:05:30

bob bundy
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Registered: 2010-06-20
Posts: 7,613

Re: Mandy Jane's Corner

You have to get the code exactly right.  The % sign isn't recognised but \% is.

It should be \times  not \time.

And sometimes the spaces matter too.  I put a space before and after \times to make that work.

Now to the problem itself.

It is not right yet I'm afraid.

The ?? must be the same as the number below it .... 20

Please try again.

Bob


Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

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#1489 2014-08-17 05:16:44

mandy jane
Member
Registered: 2010-09-23
Posts: 1,132

Re: Mandy Jane's Corner

[Math]\frac {3}{5}  =  \frac{3  \times 20}{5 \times 20}  =  \frac {60}{100}  =  60\% [/math]

Am I right

Last edited by mandy jane (2014-08-17 05:24:06)

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#1490 2014-08-17 05:22:26

mandy jane
Member
Registered: 2010-09-23
Posts: 1,132

Re: Mandy Jane's Corner

What am I doing wrong please

Last edited by mandy jane (2014-08-17 05:23:44)

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#1491 2014-08-17 05:27:26

bob bundy
Moderator
Registered: 2010-06-20
Posts: 7,613

Re: Mandy Jane's Corner

Little m in math please.

This answer is correct.  Here's a similar one to try:

Bob


Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

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#1492 2014-08-17 06:02:03

mandy jane
Member
Registered: 2010-09-23
Posts: 1,132

Re: Mandy Jane's Corner

Ok will have it done by tomorrow ok?

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#1493 2014-08-17 07:22:38

mandy jane
Member
Registered: 2010-09-23
Posts: 1,132

Re: Mandy Jane's Corner

Last edited by mandy jane (2014-08-17 07:29:18)

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#1494 2014-08-17 07:32:06

mandy jane
Member
Registered: 2010-09-23
Posts: 1,132

Re: Mandy Jane's Corner

Hi bob buddy I know how to put the question on here by copy and paste ok am I right can you send me some more please

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#1495 2014-08-17 19:58:53

bob bundy
Moderator
Registered: 2010-06-20
Posts: 7,613

Re: Mandy Jane's Corner

[math]\text{Q11.   } \frac{2}{10} = \frac{2 \times ??}{10 \times 10}= \frac{??}{100}= ??[/math]

[math]\text{Q12.   } \frac{3}{10} = \frac{3 \times ??}{10 \times 10}= \frac{??}{100}= ??[/math]

[math]\text{Q13.   } \frac{7}{10} = \frac{7 \times ??}{10 \times 10}= \frac{??}{100}= ??[/math]

[math]\text{Q14.   } \frac{1}{20} = \frac{1 \times ??}{20 \times ??}= \frac{??}{100}= ??[/math]

[math]\text{Q15.   } \frac{1}{8} = \frac{1 \times ??}{8 \times 12.5}= \frac{??}{100}= ??[/math]

Bob


Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

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#1496 2014-08-18 02:22:38

mandy jane
Member
Registered: 2010-09-23
Posts: 1,132

Re: Mandy Jane's Corner

Last edited by mandy jane (2014-08-18 02:38:02)

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#1497 2014-08-18 02:24:02

mandy jane
Member
Registered: 2010-09-23
Posts: 1,132

Re: Mandy Jane's Corner

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#1498 2014-08-18 02:34:30

mandy jane
Member
Registered: 2010-09-23
Posts: 1,132

Re: Mandy Jane's Corner

Hi bob buddy mandy here I have done questions 11 12 and 13 I am finding 14 and 15 hard can you help me please send message back please

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#1499 2014-08-18 02:39:27

mandy jane
Member
Registered: 2010-09-23
Posts: 1,132

Re: Mandy Jane's Corner

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#1500 2014-08-18 05:34:02

bob bundy
Moderator
Registered: 2010-06-20
Posts: 7,613

Re: Mandy Jane's Corner

Excellent.  These three are all correct.

For Q14 the bottom number (20) must be times by something  to make 100.

You can find the number by doing this on a calculator:

Once you have this number, times the top by the same.

For Q15 you can do a similar thing.

So do

Hope that helps.

Bob


Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

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