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#726 2013-03-21 04:10:10

mandy jane
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Registered: 2010-09-23
Posts: 876

Re: Mandy Jane's Corner

40/100 am I right?

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#727 2013-03-21 04:16:29

SteveB
Member
Registered: 2013-03-07
Posts: 528

Re: Mandy Jane's Corner

Right there are two approaches you could use. You could cancel down the fraction which I suggest you do in this case.

You could also do the division  40 divided by 100 to get a decimal which I would do if I were doing a problem like
that and allowed to use a calculator. However most maths students can do this in their head because as it happens
the numbers are nice round figures.

I suggest you cancel down the fraction first. However you may wish to look at what the calculator gives you as well.

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#728 2013-03-21 04:19:37

mandy jane
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Registered: 2010-09-23
Posts: 876

Re: Mandy Jane's Corner

40/100 10/10 s0 it = 1 am i right?

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#729 2013-03-21 04:21:06

SteveB
Member
Registered: 2013-03-07
Posts: 528

Re: Mandy Jane's Corner

No that is not correct.

However the number ten could be used to cancel. Try dividing top and bottom by 10.

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#730 2013-03-21 04:23:31

mandy jane
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Registered: 2010-09-23
Posts: 876

Re: Mandy Jane's Corner

what should i do then?

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#731 2013-03-21 04:24:58

SteveB
Member
Registered: 2013-03-07
Posts: 528

Re: Mandy Jane's Corner

Right. Copy and complete the following:

40 divided by 10 is ...................

100 divided by 10 is .................

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#732 2013-03-21 04:27:23

mandy jane
Member
Registered: 2010-09-23
Posts: 876

Re: Mandy Jane's Corner

40 /10 = 4
100/10 = 10 am i right

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#733 2013-03-21 04:28:53

SteveB
Member
Registered: 2013-03-07
Posts: 528

Re: Mandy Jane's Corner

Now what could you cancel the fraction  (40/100)  to ?

Can it be cancelled any further?

Are the numbers both even?

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#734 2013-03-21 04:31:17

mandy jane
Member
Registered: 2010-09-23
Posts: 876

Re: Mandy Jane's Corner

yes 20 goes into 100 5 times and into 40 2 so you get 2/5 am i right?

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#735 2013-03-21 04:33:27

SteveB
Member
Registered: 2013-03-07
Posts: 528

Re: Mandy Jane's Corner

Yes. That is correct.

Now let us go back to the original question:  Calculate  40 %  of  60.

Can you see what to do next ?

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#736 2013-03-21 04:34:43

mandy jane
Member
Registered: 2010-09-23
Posts: 876

Re: Mandy Jane's Corner

can you see what to do next? no i carn't

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#737 2013-03-21 04:35:58

SteveB
Member
Registered: 2013-03-07
Posts: 528

Re: Mandy Jane's Corner

We have to multiply the fraction that you gave in post #734  by 60.

I will give you a minute or two to try that.

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#738 2013-03-21 04:38:30

mandy jane
Member
Registered: 2010-09-23
Posts: 876

Re: Mandy Jane's Corner

not sure?

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#739 2013-03-21 04:42:13

SteveB
Member
Registered: 2013-03-07
Posts: 528

Re: Mandy Jane's Corner

I would do the following:

(60 x 2) divided by 5.

For speed you may wish to use your calculator. However because the numbers are quite round you may be expected
to be able to work that out in your head. (Not sure about this - it depends upon the style of the course)

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#740 2013-03-21 04:42:48

mandy jane
Member
Registered: 2010-09-23
Posts: 876

Re: Mandy Jane's Corner

i am finding it hard to do could you leave me some to do for tomorrow and i will come back on here at 2.00pm tomorrow if ok with you?

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#741 2013-03-21 04:45:52

SteveB
Member
Registered: 2013-03-07
Posts: 528

Re: Mandy Jane's Corner

I will not be able to do that at that time tomorrow. How about in the evening ?

Some more questions for you to try:

(1) Calculate  70 % of 90
(2) Calculate  30 % of 70
(3) Calculate  20 % of 150
(4) Calculate  10 % of 170

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#742 2013-03-21 04:47:54

mandy jane
Member
Registered: 2010-09-23
Posts: 876

Re: Mandy Jane's Corner

ok what about 7.00pm then any good?

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#743 2013-03-21 04:48:42

SteveB
Member
Registered: 2013-03-07
Posts: 528

Re: Mandy Jane's Corner

Yes that would be a better time.

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#744 2013-03-21 04:49:29

mandy jane
Member
Registered: 2010-09-23
Posts: 876

Re: Mandy Jane's Corner

see you then? by

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#745 2013-03-21 11:13:29

mathgogocart
Member
Registered: 2012-04-29
Posts: 1,426

Re: Mandy Jane's Corner

Steve,thanks.
1.whats 90% of 190
2.80% of 150
3. 20% of 56


Hey.

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#746 2013-03-22 05:03:04

mandy jane
Member
Registered: 2010-09-23
Posts: 876

Re: Mandy Jane's Corner

Hi mandy here just wondering how people think I am doing with my maths so far?  Leave me a message I will get back soon?

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#747 2013-03-22 05:44:33

mandy jane
Member
Registered: 2010-09-23
Posts: 876

Re: Mandy Jane's Corner

Hi steveb mandy here.  Just to say sorry I can't make it on here tonight will you be around tomorrow? Send me an email please to let me know?

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#748 2013-03-23 01:59:43

SteveB
Member
Registered: 2013-03-07
Posts: 528

Re: Mandy Jane's Corner










Last edited by SteveB (2013-03-23 08:08:17)

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#749 2013-03-23 08:23:01

SteveB
Member
Registered: 2013-03-07
Posts: 528

Re: Mandy Jane's Corner

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#750 2013-03-25 02:33:02

mandy jane
Member
Registered: 2010-09-23
Posts: 876

Re: Mandy Jane's Corner

Hi steveb mandy here. 70 percent of 90 is

Last edited by mandy jane (2013-03-25 02:33:42)

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