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Maths year 11

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Reply 500
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z_o_e
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11
Original post by RDKGames
Pond + pond + patio is wrong. Work them out individually and add them up.


How's this?


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Original post by z_o_e


Correct. (You should really lay off so many decimal places lol, 2 or 3 are enough)
Reply 502
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z_o_e
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11
Original post by RDKGames
Correct. (You should really lay off so many decimal places lol, 2 or 3 are enough)


Hahaha I just find it easier to understand like this xx

What do I do after?

Is it 112.2/25

And then round it to the nearest whole?

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Original post by z_o_e
Hahaha I just find it easier to understand like this xx

What do I do after?

Is it 112.2/25

And then round it to the nearest whole?

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Yes that should give you the minimum amount of boxes you need. After you get the number, think whether you round to the nearest whole, will that number be enough for all the grass as the person wishes?
Reply 504
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z_o_e
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11
Original post by RDKGames
Yes that should give you the minimum amount of boxes you need. After you get the number, think whether you round to the nearest whole, will that number be enough for all the grass as the person wishes?


It's not enough..
As he got 4.488

Therefore he needs 5 boxes. But he doesn't have enough he only has 4boxes

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Original post by z_o_e
Heya, my end of year exam is coming up and I'm doing higher and I'm getting D's I'm currently in year 10 and I know I can do better if I revise. Is anyone else willing to help me with a few questions ?


Achieve maths on youtube is brilliant! They go through so many past papers, watch all the videos :smile:
Reply 506
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z_o_e
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11
Original post by Crabber25
Achieve maths on youtube is brilliant! They go through so many past papers, watch all the videos :smile:


Thankss x

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Original post by z_o_e
It's not enough..
As he got 4.488

Therefore he needs 5 boxes. But he doesn't have enough he only has 4boxes

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What do you mean by that last statement when you say he has only 4 boxes? The question asks how many boxes he needs. So your first 2 statements are correct, you can't round down because 4 is not enough therefore he must make do with 5 and keep the leftover fertiliser.
Reply 508
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z_o_e
OP
11
Original post by RDKGames
What do you mean by that last statement when you say he has only 4 boxes? The question asks how many boxes he needs. So your first 2 statements are correct, you can't round down because 4 is not enough therefore he must make do with 5 and keep the leftover fertiliser.


He can only use 4 fertilisers. Hahaha sorry about that x

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Original post by z_o_e
He can only use 4 fertilisers. Hahaha sorry about that x

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Doesn't specify anywhere in the question that the restriction is 4, so he can use 5 as that's the minimum needed. Anywho, you get the idea. :smile:
Reply 510
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z_o_e
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11
Original post by RDKGames
Doesn't specify anywhere in the question that the restriction is 4, so he can use 5 as that's the minimum needed. Anywho, you get the idea. :smile:


For this one should I find the interior and exterior angles?


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Reply 511
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z_o_e
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Original post by z_o_e
For this one should I find the interior and exterior angles?


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Personally I would find the interior angle, as we are told it is a 10-sided regular polygon (known as a decagon). We can label angle DCX as angle yy

So then we have the same situation as your previous questions, all these 3 angles around C add up to 360 and you know one of them so you can work out yy.
Original post by z_o_e


A valid method which I've mentioned above this post, however 144+90 is not 204 :smile:
Reply 514
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z_o_e
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11
Original post by RDKGames
Personally I would find the interior angle, as we are told it is a 10-sided regular polygon (known as a decagon). We can label angle DCX as angle yy

So then we have the same situation as your previous questions, all these 3 angles around C add up to 360 and you know one of them so you can work out yy.




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Original post by z_o_e


You can extend the line too if you wish and work with that, though I wouldn't bother personally. The interior angle will be made up from the 90 you've drawn on and the other angle. You can find that other angle and take it away from 180 to get the angle you need.
Reply 516
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z_o_e
OP
11
Original post by RDKGames
You can extend the line too if you wish and work with that, though I wouldn't bother personally. The interior angle will be made up from the 90 you've drawn on and the other angle. You can find that other angle and take it away from 180 to get the angle you need.


How do I find the other angle? :/

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Reply 517
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z_o_e
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11
Original post by RDKGames
You can extend the line too if you wish and work with that, though I wouldn't bother personally. The interior angle will be made up from the 90 you've drawn on and the other angle. You can find that other angle and take it away from 180 to get the angle you need.


Got it x

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Original post by z_o_e


Correct.
Reply 519
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z_o_e
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11
Original post by RDKGames
Correct.


Now angle d

Is 360-144

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