# Number Stairs (urgent)

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17 years ago
#1
Hi, this is dire. Has anybody done the number stair investigation for Maths GCSE, or can anybody tell me where to find help for this?

I repeat, it's urgent. I need to do it by thurs 7th november.

~Neo N
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17 years ago
#2
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17 years ago
#3
But there U gotta pay to read the full essay. Anywhere else you can get it? Free?
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17 years ago
#4
If your education isn't worth 4.99, you don't really value your future very much do you?
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17 years ago
#5
Good point

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17 years ago
#6
True. But I think that most of the other ones have
- smaller, more limited range of essays (they have 12,000+)
- no original word documents
- less categorisation
- older essays

I don't think that it's a big price to pay if it helps you get an 5 extra A's. Getting 5 extra A's would mean that you go into a better job and earn however many thousands more per year. Not a bad investment.
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17 years ago
#7
answer for 3 number stairs is
x times 6 +44
if you make the bottom left hand corner numeber x
e.g
for the step stair
21
11 12
1 2 3

1 would be x so the answer would be 1 times 6+44= 50

make a table like this to display your results

step stair Total difference
1(1+2+3+11+12+21) 50 -
2(2+3+4+12+13+22) 56 6
3(3+4+5+13+14+23) 62 6
4 CANNOT BE F**K 68 6
5 2 DO THESE 74 6

THEN WRITE THIS- as the difference between the total is always 6 then it must be x times 6 to work out then say the formula must be
6x + the differnce of (6x- the total of the step stair) =total
to work this out i must make another table

step-stair (6x) 6x equals 6x -total of step stair difference

1times 6 6 50-6 44
2times6 12 56-12 44
3times6 18 62-18 44
4times6 24 68-24 44
5times6 30 74-30 44

NOW WRITE as the diffence is 44 my final formula must be

6x+44=total of 3 step stair

now do the same thing 4 the 4 step stair and you are nearly their

charlie
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17 years ago
#8
Does anybody know how to do part 2 of this. I can't find a formula that includes stair number and stair size?
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17 years ago
#9
What's the full question? Can you post it here?
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17 years ago
#10
You find the answer in time Dire? you said it was in for the 7th.
I found it the other day, sorry i didn't find your post sooner.
In the end i found something like:

(x(x+1)/2)n + (g+1)/6 (x-1) (x+1) ( x )
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17 years ago
#11
Oh, i forgot to mention:

x = number of steps of the stair
n = nottom left number of the stair (place on grid)
g = grid size. eg. on a 10 X 10 grid, g=10
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17 years ago
#12
You honestly don't think his name is dire do u?
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17 years ago
#13
he said he was dire. i guessed he was telling the truth. I dunno he might be lying bout his name.
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17 years ago
#14
Yeah, but dire is a word:

dire

Warning of or having dreadful or terrible consequences; calamitous: a dire economic forecast; dire threats.
Urgent; desperate: in dire need; dire poverty.
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17 years ago
#15
Number Stairs

Part 1
For other 3-step stairs, investigate the relationship between the stair total and the position of the stair shape on the grid.
Part 2
Investigate further the relationship between the stair totals and other step stairs on other number grids.

I gotto hand this in 2moro any help would be appreciated, i searched around for this on www.studentcentral.co.uk and found it but it rather complicated and i dont understand their version of it so thes makes it complicated for me to put this into my own words
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17 years ago
#16
Number Stairs, Grids and Sequences Essays and Coursework
Maths Coursework - Grids
Maths Grid Coursework
Maths Grid Investigation
Maths Grid Investigation
Maths Grid Investigation
Maths Investigation- Grids
Maths Number Patterns Investigation
Maths Sequences Investigation
Number Grid Product Differences Investigation
Number Grid.
Number Stairs Investigation – Course Work
Number Sums Investigations

http://www.coursework.info/418/
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17 years ago
#17
I have to hand in that same coursework tomorrow and I need the final formula. I need it all explained too! Did you get it all?
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17 years ago
#18
Best of luck with it :}
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17 years ago
#19
Originally posted by Unregistered
You find the answer in time Dire? you said it was in for the 7th.
I found it the other day, sorry i didn't find your post sooner.
In the end i found something like:

(x(x+1)/2)n + (g+1)/6 (x-1) (x+1) ( x )
I tried this formula and the econd part (g+1)/6 (x-1) (x+1) ( x ) confused me. it supposed to add up 44 but it doesn't. can som one tell me if it is correct.
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17 years ago
#20
I only have started the coursework today (27/01/03), its boring! Anyway I just have to put it all into my own words and then I can go to sleep. Night, night. ZZZZZZ
from Nicola
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