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GCSE AQA Non calculator unofficial mark scheme

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Original post by Ollie1999

For the linear specification marked out of 70

1. £256.50
2. 750cm^3
3. 16cm
4a. 0.4 and 0.2
b. 200 150 100
c 0.125
5. 10cm
6a as average temperature goes up soup sales down
b 500
7. 22.5
8a 4 ( I got 2 )
b 1,2,3,4
9a w^2
b 12x^4y^5
c 6a^2b^4
10a 1.8 X 10^3
b 5 X 10^3
11. Enlarge 1/3 around (10,10) (I got -3)
12a 35
b 25
c A+D & B+C = 180
13a 12x^2+16x-3
b X=0.75 or -1
14. 1/6 cm
15 x= 5/y-3
16. X<7/9
17 a -2.7 or 2.7
b 9.6
18 36-16 root 3
19a y=1/X
b (0,1)
20. Substitute X as 2 and PI as 3 and both volumes are the same but PI is bigger 3.14 so the sphere volume would be bigger.

Not sure on 14, 16 and 17b but I think I got roughy 64

I'm pretty sure 18 was 9 - 4 root3
And 10a is 1.8 x 10^4

Reply 21

Lolamoon

Original post by Lolamoon

I'm pretty sure 18 was 9 - 4 root3
And 10a is 1.8 x 10^4

Was 14 the triangle q?? If so the answer is 8

Reply 22

evebennettx

I think I've done well apart from I must have misread question 3 and it put 48 not 16.... was it the inner rectangle? cos i did the outer and i must have misread it every time i checked it! Reckon i got about 65-67/70 though so yay!

Reply 23

RubiksNinja

Original post by Lolamoon

I'm pretty sure 18 was 9 - 4 root3
And 10a is 1.8 x 10^4

^^^ yeah i agree with these

Reply 24

Lolamoon

I did quite well I think, apart from the fact that I misread the direction of enlargement and thought it was the smaller shape being enlarged bigger, silly me!

Reply 25

ZacLaw

Original post by Lolamoon

I did quite well I think, apart from the fact that I misread the direction of enlargement and thought it was the smaller shape being enlarged bigger, silly me!

You'll probably still get follow through marks though :P

Original post by RubiksNinja

I'm not too sure. I've spoke to a few people who think it said find 35% and others who thought it said increase. I thought it was increase by 35% but I'm not sure

Im 100% sure it was increase 190 by 35% :P

Reply 26

RevisionGuide

Original post by Lolamoon

I'm pretty sure 18 was 9 - 4 root3
And 10a is 1.8 x 10^4

That's what I got but not sure

Reply 27

RubiksNinja

Im 100% sure it was increase 190 by 35% :P

Brill :smile:

I'm intrigued to find out what the grade bounderies will be like for this paper. Dispite it being rather difficult, i think a lot people would have done really well on it

Reply 28

RevisionGuide

How did everyone find the paper overall??

Reply 29

ZacLaw

Original post by RubiksNinja

Im 100% sure it was increase 190 by 35% :P

Brill

I'm intrigued to find out what the grade bounderies will be like for this paper. Dispite it being rather difficult, i think a lot people would have done really well on it

Me too, i made a bunch of stupid mistakes but hopefully i can scrape myself a C grade so i dont have to redo it next year :P

Reply 30

RubiksNinja

Original post by ZacLaw

Brill

I'm intrigued to find out what the grade bounderies will be like for this paper. Dispite it being rather difficult, i think a lot people would have done really well on it

Me too, i made a bunch of stupid mistakes but hopefully i can scrape myself a C grade so i dont have to redo it next year :P

I made a few silly mistakes too but hoping to get an A* still. It is preferable as i am doing further maths next year. But i did think the test contained quite a few tricky questions

Reply 31

Ginny22

for 17b I have 2.25
I substituted square root of 5 into f(x) and then found the answer on the graph

(edited 7 years ago)

it is 4.5

Im assuming this is for the Foundation paper?

Reply 34

Ginny22

Original post by MysticKnight

Im assuming this is for the Foundation paper?

It's the Higher Paper MysticKnight

Reply 35

pennyx

hi has anybody seen one for foundation thanks

Reply 36

DemLewisss

For 17b I used y=10 as you halved it, got 5 then you square rooted it to get root5 so you went along the Y=10 line and the root of 5 was around 2.2

Reply 37

DemLewisss

Also what about the shaded rectangle question????

Reply 38

FenixZ

Original post by Lolamoon

Was 14 the triangle q?? If so the answer is 8

Yeah, here's a written solution if you're interested http://imgur.com/a/Bw6gY

Reply 39

etata

Original post by RubiksNinja

I got something like that too. I think you're right. Can't remember if i put +9 or -9 but if you say -9 then that is probably what i put. Definitely remember putting those number though for that answer :smile:

I'm pretty sure I got 4-9 root 3, I think that's the answer, how did you find it in general?