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Maths year 11

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Reply 1000
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Original post by RDKGames
Correct. Though uhh... you said that 0.12/12=1/100 then on the next line you proceeded to work out 3/300 through manipulation? Why? You know that 3/300=1/100 right? :tongue:




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Reply 1001
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Original post by RDKGames
Correct.


What do I do on the one above?its still a decimal.


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Original post by z_o_e
What do I do on the one above?its still a decimal.


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Multiply top and bottom by 10 once more. Come on you've done these types of conversions yesterday :P
Reply 1003
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Original post by RDKGames
Multiply top and bottom by 10 once more. Come on you've done these types of conversions yesterday :P


Oh I'd rather times it by 1000

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Original post by z_o_e
Oh I'd rather times it by 1000

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Exactly. If in doubt just keep multiplying top and bottom by 10 until you have integers on both.
Reply 1005
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Original post by RDKGames
Multiply top and bottom by 10 once more. Come on you've done these types of conversions yesterday :P




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Original post by z_o_e


Correct.
Reply 1007
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Original post by RDKGames
Correct.




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Original post by z_o_e


Yep. :smile:
Reply 1009
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Original post by RDKGames
Yep. :smile:


Did this.
Can you do something on bounds please

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Original post by z_o_e
Did this.
Can you do something on bounds please

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Apologies for the delay, I was dealing with some uni stuff. :smile:

Anyhow, that's correct. If you give me an example of a bounds question I'll be able to help you as I forgot what bounds are like at GCSE level.
Reply 1011
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Original post by RDKGames
Apologies for the delay, I was dealing with some uni stuff. :smile:

Anyhow, that's correct. If you give me an example of a bounds question I'll be able to help you as I forgot what bounds are like at GCSE level.




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Reply 1012
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Original post by RDKGames
Apologies for the delay, I was dealing with some uni stuff. :smile:

Anyhow, that's correct. If you give me an example of a bounds question I'll be able to help you as I forgot what bounds are like at GCSE level.




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Reply 1013
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Original post by RDKGames
Apologies for the delay, I was dealing with some uni stuff. :smile:

Anyhow, that's correct. If you give me an example of a bounds question I'll be able to help you as I forgot what bounds are like at GCSE level.


Here

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Reply 1014
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Sorry my tsr froze before!
:smile:
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Original post by z_o_e
Sorry my tsr froze before!
:smile:
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Think of bounds like two extreme cases of a particular value; one will be the lowest possible one, and the other will be the highest possible one. All the numbers between the two will make up a range of values that will round to that particular value.

Explanation, bear with me as I can find this difficult to explain in any simpler terms:

Spoiler


The two bounds of the first one would be 1.5cm (lower bound) and 2.5cm (upper bound). So the maximum length would be 2.5cm.
(edited 7 years ago)
Reply 1016
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Original post by RDKGames
Think of bounds like two extreme cases of a particular value; one will be the lowest possible one, and the other will be the highest possible one. All the numbers between the two will make up a range of values that will round to that particular value.

Explanation, bear with me as I can find this difficult to explain in any simpler terms:

Spoiler


The two bounds of the first one would be 1.5cm (lower bound) and 2.5cm (upper bound). So the maximum length would be 2.5cm.


Thank you so much.

Can you do the first question on paper please and how you'd lay it out.

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Reply 1017
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Original post by RDKGames
Apologies for the delay, I was dealing with some uni stuff. :smile:

Anyhow, that's correct. If you give me an example of a bounds question I'll be able to help you as I forgot what bounds are like at GCSE level.


I tried the first question myself.


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Original post by z_o_e
I tried the first question myself.


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That's good. No need to show the progression with the increasing 9s though. A simple inequality would suffice.
Reply 1019
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Original post by RDKGames
That's good. No need to show the progression with the increasing 9s though. A simple inequality would suffice.


How do I do Q2?

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