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 Post subject: 2 maths questions, help please!Posted: Thu Nov 04, 2010 12:30 am

Joined: Thu Sep 30, 2010 8:03 am
Posts: 32
Hi Ive come across the following 2 questions which i just cannot seem to find a method for...please could some give a quick explanation of the answer? they prbably are simple ones i just seem to not be able to do them!

1) x/12=11 remainder 5, calculate z

2) how many times does 2500cm2 go into 15m2?

any help would be appreciated
thanks

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 Post subject: Re: 2 maths questions, help please!Posted: Thu Nov 04, 2010 7:15 am

Joined: Wed Apr 28, 2010 11:19 am
Posts: 294
Is the first one meant to be calculate x rather than z?
as 12/12 equals 1 then x is found by (12 x 11)+5 = 137
ie if you divide 137 by 12 you get 11 rem 5.

I think the answer to the 2nd question is 60
2500cm2 = 0.25m2
15 / 0.25 = 60
but maybe someone could check this? this sort of conversion not my strongest point

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 Post subject: Re: 2 maths questions, help please!Posted: Thu Nov 04, 2010 9:03 pm

Joined: Sun May 09, 2010 12:04 pm
Posts: 2585
chicko-mum wrote:

I think the answer to the 2nd question is 60
2500cm2 = 0.25m2
15 / 0.25 = 60
but maybe someone could check this? this sort of conversion not my strongest point

I agree with you, chicko-mum.

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 Post subject: Re: 2 maths questions, help please!Posted: Sun Nov 07, 2010 12:44 pm

Joined: Thu Sep 30, 2010 8:03 am
Posts: 32
Hi
Thanks for your input to the answer: im having a mental block....how did you convert the cm2 to m2? why divide the cm2 by 1000 to get to m2??? and also didnt ge the second question either???:(((
saima

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 Post subject: Re: 2 maths questions, help please!Posted: Sun Nov 07, 2010 1:02 pm

Joined: Wed Apr 28, 2010 11:19 am
Posts: 294
To convert 2500cm2 to m2 I imagined the shape to be 25cm x 100cm (giving an overall 2500cm2).
25 cm = 0.25m and 100cm = 1m
0.25 x 1 = 0.25m2

hth

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