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# Edexcel GCSE Mathematics A Higher Paper 2016 Unofficial Markscheme Watch

1. x^2 = 4 ( X^2- 6x+9)
4x^2-x^2-24x+36=0
3x^2-24x+36=0
all devided by 3
x^2-8x-12=0
(x-6)(x-2)=0
x=6
x=2
2. (Original post by Oasis61)
Yes you'll defo get 1 but maybe 2
Really? Is that what method marks are? As I just crumbled mostly, like on all of them I did all working right like on the last question I knew how to find the areas but for some reason did 6xroot6 was root36 when it blatantly isn't. Gutted haha
3. (Original post by MarcusJT)
For Question 5 (Estimate 892 ÷ 18.9)
I got the answer 50 (lack of concentration) but now i know the real answer is 45. However because it is an estimate question would i get any marks since my answer was near the correct answer?
Unfortunately, I'm afraid that they would only award you marks for the only correct answer. You can still get the method marks, though, if your working out is correct. I may be wrong, though.
4. (Original post by MarcusJT)
For Question 5 (Estimate 892 ÷ 18.9)
I got the answer 50 (lack of concentration) but now i know the real answer is 45. However because it is an estimate question would i get any marks since my answer was near the correct answer?

Unfortunately, I'm afraid that they would only award you marks for the only correct answer. You can still get the method marks, though, if your working out is correct. I may be wrong, though.
5. Can anyone guess what the predicted grade boundaries would be for that paper?
6. I put X = 4 for the X = 2 and X = 6 question, because I square rooted both sides of the equation??
7. (Original post by MarcusJT)
Can anyone guess what the predicted grade boundaries would be for that paper?
I would say 80 for an A*, 65 for an A, 50 for a B. Ayyyyyee wkfdddddd
8. (Original post by jaspreetb)
No, you're wrong, although both are divisible by 25, doing so would change the actual value of the end answer. The final answer is 100-25 pi
Hahaha. No, no it wouldn't.
9. Hi what topics do we revise for the edexcel higher tier calculator paper on Thursday 9th?
10. (Original post by Angelbeauty)
Hi what topics do we revise for the edexcel higher tier calculator paper on Thursday 9th?
11. (Original post by Angelbeauty)
Hi what topics do we revise for the edexcel higher tier calculator paper on Thursday 9th?
My teacher gave us a potential list:
simultaneous equations - linear and quadratic
trial and improvement
stem and leaf
solving equations
trigonometry
sine + cosine rules
scatter graphs
factors, multiples, primes
length, area and volume formulas
number sequences
frequency polygons
histograms
area + circumference of circles, sectors
volume, surface area of 3D shapes
box plots
bearings
upper and lower bounds
angles - parallel lines, polygons
stratified samples
percentage increase, decrease or % backwards
HCF and LCM
mean from a frequency table
ratio
recurring decimals to fractions
compound interest
rearranging formula
pie charts
pythag theorem
moving averages
cumulative frequency
sine and cosine graphs
algebraic fractions
x^2 + y^2= 25 circle equation
completing the square
number proof
transformation of curves
12. For Question 12 (finding out the area of shaded region), did they ask you to write your answer in the simplest form?
13. Do you get full marks on a question if you have done little working but get the right answer
14. What do you think the grade boundaries would be to get a B ?
15. (Original post by iMacJack)
Hahaha. No, no it wouldn't.
Doesn't it?
16. Around 50 on each paper
(Original post by Abigail thomson)
What do you think the grade boundaries would be to get a B ?
17. (Original post by tianshan)
18. On the question 3 I wrote no time frame and Overlapping. Will I get mark for saying overlapping or it will be vargue. And on part b I draw the boxes by 0-1,2-3,4-5,6+ will I get 1 mark for that. Also on part C I write down Location, where as in shop it be more people. Will I get marks for this. Please do help me with I really want to know if I can get 3 marks from that question thanks. Also on question number 7 I only manage to work out that she need 10 litres of varnish and did 3x2.5=7.5 and said she doesn't have. How many marks will I get total.
19. (Original post by Yaseen10)
On the question 3 I wrote no time frame and Overlapping. Will I get mark for saying overlapping or it will be vargue. And on part b I draw the boxes by 0-1,2-3,4-5,6+ will I get 1 mark for that. Also on part C I write down Location, where as in shop it be more people. Will I get marks for this. Please do help me with I really want to know if I can get 3 marks from that question thanks. Also on question number 7 I only manage to work out that she need 10 litres of varnish and did 3x2.5=7.5 and said she doesn't have. How many marks will I get total.
For the overlapping and time frame part you would get full marks as the answer do nkt need to be in context. For part b they will knock down a mark because you said 6+ which means 7 OR ABOVE. Therefore there is no choice for 6. Part c they should give you the mark.
For thr varnish questiom you need to show how you reached you reached rhe answer of 7.5. marks in rhat question will also be awarded for your ability to find the area of a combined shape. In that you may risk to lose one or two max marks in tot
20. (Original post by Oasis61)
Doesn't it?
nope. 100-25pi is the same as 25(4-pi). Both are equally correct, the second one is just factorised but i dont know if that makes it simpler or not (they said leave your answer in its simplest form)

Updated: May 24, 2017
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