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# Edexcel GCSE Mathematics A Higher Paper 2016 Unofficial Markscheme

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1. (Original post by Undec)
Solving simultaneous equations graphically
The coordinates at which the two lines intersect..
2. (Original post by Shiby_123)
What did u get for the last 7 marker?

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(3-√6)/12
3. does anyone know what the question was for (I think) it was question 8. People have said the answer was 60? It's the question that was above the letter one.
4. (Original post by Shiby_123)
What did u get for the last 7 marker?

Posted from TSR Mobile
what 7 marker m9
5. (Original post by 11ahf)
No, that's not how surds work. You can't simplify root six because no square numbers can come out of it.
Oh god yea I'm so annoyed at myself for that now I don't know what I was thinking!
6. (Original post by notnek)
You may want to edit the image for the last question so as not to mislead people.

AD = AB is not right.
Fixed it, thank you.
7. (Original post by vrajpatel)
Q1 750cm^3
Q2 too vague and no timeframe
The class is a small sample/biased
Q3 p^7
g^2
k^6
10-5m
n(n-7)
45
90
No not enough varnish cos she needs 50cm^2 but has 37.5cm^2
60
T=5x+20y
(-3,-2)
11 females
100-25pi
36%
I compared median, IQR and range
150
7x10^8
X<7
7/5
2 4/5 in mixed fraction form
4/5
x=-0.4 and 4.4
X=-1.1 and 5.1
X=-1.7 and 4.7
Angle MST 69
Probability is 0.04
X=2&6
a+b
-a+3b
3/4(a+b) for vector
Point s is on both lines and it is point where they intersect
100,25,4
Final questions is (3-root6)/12
What was the question for the one that has the answer of 60?
8. 43 were female i think
9. Question 2 is rotation and reflection
10. (Original post by Pedaly7)
Thats what I did but i didnt get -1.7 and 4.7
I read -1.6 and 4.6 😪. Do I get 0 or is there range?
11. (Original post by 11ahf)
It just said work out the x values.
I don't remember it saying that. Did it not just say to estimate simultaneous equation solutions. Oh well, I doubt I'd lose marks because its positive marking and I got my x-values correct!
12. (Original post by Amyrosee)
Oh god yea I'm so annoyed at myself for that now I don't know what I was thinking!
Don't worry, you'll probably still get 2 marks out of the 3. :P And it's much better than most people managed to get in that question.
13. (Original post by Redcoats)
I'm pretty sure the answer was 7x10^8
the 10^3 was divide 10^-6 so indices rules are divide means -: so 3--6=9
14. (Original post by Redcoats)
I don't remember it saying that. Did it not just say to estimate simultaneous equation solutions. Oh well, I doubt I'd lose marks because its positive marking and I got my x-values correct!
Nope, just the x ones! Yeah, no harm in putting the y values as well.
15. 1) volume of a prism: 750cm3
Q??) probability: 0.95, 0.05, 0.7, 0.3
Q2) questionnaire, question doesn't specify time, ambiguous and also the options aren't specific enough "often" "sometimes" hard to interpret
Q??) 36%- rent increase
Q??) circle theorem: angle 69 degrees
Q??) not enough tiles, 7.5 litres, needs 10
Q??) inverse proportion: 100, 25, 4
Q??) circle in a square- 100-25 pie
Q??)11 female teachers
Q??) box plot distribution: comment on mean, range, interquartile range with numerical comparisons
Q??) 90 teachers
Q??) estimate L, in sample of 300, round 80 to 100, 16 to 20, so estimate of 60
Q??) powers/indices, add the powers when multiplying two numbers, take away powers when dividing, and if in a bracket, multiply those powers
Q??) vectors, a) a+b, b) 3b-a, c) 3/4 a + 3/4b (can't remember whether + or -)
Q??) factorise n2 -7n = n(7-n)
16. (Original post by LogicalFallacy)
Fixed it, thank you.
Thanks. Can you also remove the attached image from that post - it hasn't been corrected.
17. My predicted A* now feels like a B if i'm lucky. Had a panic attack in the exam and they refused to let me go and come back (even though people were going to the loo) and i just cried all over my paper. Yay.
18. (Original post by lillyholmes)
the 10^3 was divide 10^-6 so indices rules are divide means -: so 3--6=9
You had to divide 3.5 by 5, leaving you with 0.7x10^9 = 7x10^8.
19. How high do you think the grade boundaries will be?
20. Q22 was 78 not 69

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