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# Maths year 11

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1. (Original post by 34908seikj)
How 'bout now?
Clear! Thank youu!

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2. (Original post by z_o_e)
Clear! Thank youu!

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keep dem questions coming fam.
3. (Original post by 34908seikj)
How 'bout now?
Will you be able to make me an example question in a similar way?

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4. (Original post by z_o_e)
Will you be able to make me an example question in a similar way?

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http://www.mrbartonmaths.com/gcsetakeaway.htm

http://www.mrbartonmaths.com/resourc...e-diagrams.pdf

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6. (Original post by z_o_e)

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http://www.examsolutions.net/maths-r...her/module.php

http://www.mathsgenie.co.uk/gcse.html

http://www.themathsteacher.com/gcse_maths.php

https://mathswebsite.com/gcse

You might find these just as helpful.
7. THANK YOU VERY MUCH!

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8. (Original post by z_o_e)
THANK YOU VERY MUCH!

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Not drawn to scale, but that's the sort of shape it should be.

9. (Original post by 34908seikj)
Not drawn to scale, but that's the sort of shape it should be.

Oh :/

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10. The line between A and B should be exactly halfway - no need to use LOCI to find the middle, the measure the length and half it!
11. (Original post by 34908seikj)
The line between A and B should be exactly halfway - no need to use LOCI to find the middle, the measure the length and half it!
Thee First question

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12. (Original post by 34908seikj)
The line between A and B should be exactly halfway - no need to use LOCI to find the middle, the measure the length and half it!

I got this but I'm not sure.

As isn't 1 percent divide by 100?

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13. (Original post by z_o_e)
I got this but I'm not sure.

As isn't 1 percent divide by 100?

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Is this calc or non calc? I just used calc, but I can do it non calc if you like.

14. (Original post by 34908seikj)
Is this calc or non calc? I just used calc, but I can do it non calc if you like.

I'm trying to find them mentally. But I kind of understand now it's just that my teacher confused me with this method. I don't know which method to use.

We did this today.

This is how I did it... I got it wrong ..

This is sirs method

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15. (Original post by z_o_e)
I'm trying to find them mentally. But I kind of understand now it's just that my teacher confused me with this method. I don't know which method to use.

We did this today.

This is how I did it... I got it wrong ..

This is sirs method

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The first one, you increased it by 20%, when it actually asked for a reduction of 20% (take away 20%), likewise with the second one you have increased the value when I presume you need to decrease it.

1200 reduced by 20% is 960 - You can work this out by doing 1200*0.8. 0.8 because you want 80% of the total value. You just divided it by 80. - that's not how percentages work.

- At least I think that's what you're supposed to do, I couldn't tell what the question was on the second image.
16. (Original post by 34908seikj)
The first one, you increased it by 20%, when it actually asked for a reduction of 20% (take away 20%), likewise with the second one you have increased the value when I presume you need to decrease it.

1200 reduced by 20% is 960 - You can work this out by doing 1200*0.8. 0.8 because you want 80% of the total value. You just divided it by 80. - that's not how percentages work.

- At least I think that's what you're supposed to do, I couldn't tell what the question was on the second image.
Ohh the second image is the same question.

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17. (Original post by 34908seikj)
Is this calc or non calc? I just used calc, but I can do it non calc if you like.

Can you do this question one neatly please as an example.

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18. (Original post by z_o_e)
Can you do this question one neatly please as an example.

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19. (Original post by 34908seikj)
Where did you get 1.1 from?

It Increases by 10%

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20. (Original post by z_o_e)
Where did you get 1.1 from?

It Increases by 10%

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You want to add 10% on the 5000

10% as a decimal is 0.1

and 100% as a decimal is 1

If you were to add 10% of 5000 back onto the 5000, you would have 110% of the original value

Therefore we multiply by 1.1 as 110% = 1.1

When you want to increase by a percentage aways have the value larger than 1, as it accounts for your current value. want to increase by 58% = 1.58, increase by 240% = 2.4 etc. etc.

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