You are Here: Home >< Maths

# Edexcel Core 3 - 21st June 2016 AM watch

1. (Original post by Owensmith16)
You need 90UMS in core 3...
No, you only need an average of 90 ums between C3 and C4 to get an A* in math.
2. Lads worst case I've got 58, what ums is that
3. (Original post by Ainsleyy)
btw was it -root5 < x < root5 or was it -root5 > x > root5 ? I cant remember which q it was
Unless I'm going mad from exams I don't think -root5 > x > root5 makes sense.... Less than -root5, but more than root5?

I got -root5 < x < root5 as well.
4. (Original post by edothero)
Are you doing C4? If so, you sitll have a chance.
64/75 will be likely to get you 85 UMS +
So all you need in C4 is 95+ and you're good to go
no im not doing core 4 because i did my maths a level a year early, so i only opted to resit core 3 because all my other modules were fine. in hindsight it mightve been better to also resit core 4 to try and get above 90 ums. oh well..
5. (Original post by Zlalani)
Does anyone know how many marks i would lose for showing the work but not writing the values of A and B in 9c ?
None. You will not get penalised for not explicitly stating A & B.
6. (Original post by Azzer11)
26.57 I believe.
Aw shucks, I put 26.6 because I did it in radians first and forgot the 2dp instruction when I went back to change it to degrees >_<. Hopefully they only penalise once for that because I used 26.6 throughout the question (of course doing any calculations using an exact calculator variable).
7. (Original post by ebolaboy)
Lads worst case I've got 58, what ums is that
Most likely a scraped A, so 80 UMS. I don't know though, it's a prediction made from past boundaries.
8. (Original post by Pablo Picasso)
Where's the f paper?
what's the f paper?
9. (Original post by ebolaboy)
Lads worst case I've got 58, what ums is that
Your name loooool. Anyway, should be mid/high B.
10. (Original post by Pablo Picasso)
None. You will not get penalised for not explicitly stating A & B.
11. (Original post by notrodash)
Aw shucks, I put 26.6 because I did it in radians first and forgot the 2dp instruction when I went back to change it to degrees >_<. Hopefully they only penalise once for that because I used 26.6 throughout the question (of course doing any calculations using an exact calculator variable).
You will lose a mark for ever A1 it affects.
12. (Original post by Lavender26)
Could someone help me work something out (as your all mathematicians!)
Last year I got
C1- 90 UMS
C2- 89 UMS
S1-100 UMS

Today went really bad and I have counted and gotten about 68%
What UMS do I need in C4 and S2 to get an A overall? (Need 3As for uni)
Use the Benegg grade calculator. Its easy to use and. But just looking at your grades you are fine you can afford some mid to high Bs in C4 and S2 and you would still get an A.
13. (Original post by Azzer11)
Ah it's very possible I made the same mistake, how many marks do you think we will lose?
i cant see it being over 2 maybe 1 if we are lucky
14. (Original post by cjlh)
Much too optimistic, especially for full UMS.
alright then how does this sound then...same as last years...

65 -- 90ums
59 -- 80ums
15. (Original post by Ainsleyy)
btw was it -root5 < x < root5 or was it -root5 > x > root5 ? I cant remember which q it was
was the equation -4/x^2-5
16. (Original post by Pablo Picasso)
You will lose a mark for ever A1 it affects.
Uhuh, so 1. I always use exact numbers and round when I write on paper. Cool, thanks!
17. (Original post by Lavender26)
Could someone help me work something out (as your all mathematicians!)
Last year I got
C1- 90 UMS
C2- 89 UMS
S1-100 UMS

Today went really bad and I have counted and gotten about 68%
What UMS do I need in C4 and S2 to get an A overall? (Need 3As for uni)
I did 90+89+100+ 60 UMS (in Jan 2013 which was a normal year, 68% was 60 UMS), this is equals to 339.

An A is 480 UMS so you need to get 141 UMS which averages to a low B/70.5 UMS in C4 and S2. Aim to get above 80 UMS in C4 and above 90 in S2 (since last year you got 100, 90 seems a good number), this way you are safe to get an A. Good luck!
18. Right my turn (All predicted except C1, C2, S1, C3)
I got C1 - 95 UMS
C2 - 95 UMS
S1 - 65 UMS
D1 - 75 UMS
C3 - 80 UMS
What would I need to get marks wise to get an A overall ....
19. (Original post by Azarashi)
Unless I'm going mad from exams I don't think -root5 > x > root5 makes sense.... Less than -root5, but more than root5?

I got -root5 < x < root5 as well.
It was less than negative root 5, or more than positive root 5. If you graph dy/dx, you can see that it's only positive between -sqrt5 and sqrt5, meaning it's negative outside those boundaries.

https://www.desmos.com/calculator/ngz0g28xf5

Or note the minimum and maximum points on the graph of y:

https://www.desmos.com/calculator/bys8keuq2r
20. (Original post by immagooner)
alright then how does this sound then...same as last years...

65 -- 90ums
59 -- 80ums
It could be. Truth is there's no way to really predict grade boundaries.

### Related university courses

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: July 20, 2016
Today on TSR

### Exam Jam 2018

Join thousands of students this half term

### Solo - A Star Wars Story

Poll
Useful resources

Can you help? Study help unanswered threadsStudy Help rules and posting guidelinesLaTex guide for writing equations on TSR

## Groups associated with this forum:

View associated groups

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE