Unofficial mark scheme for Edexcel Maths Paper 1- Higher 2023

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Reply 40

khaledthegcsegod

Original post by Sara_hussain

How many marks were for circle theorem

4 marks

Reply 41

zackyboii

Original post by A.23

If you guys can remember anymore answers or think that any of the ones I've added so far are wrong then I'll edit it !

I think function ones were
i) (5x-2)^2 (2 marks) (not 100% sure about this tho)
ii) 55 (3 marks) (like 75% sure for this one)

Reply 42

AnharM

Original post by hyekura

Circle theorem was 39 tho hes wrong.

Maths teacher here, it's 71 degrees, not 39.

You assumed it was the "bow tie" version, but all of the corners of the bow tie must touch the circumference of the circle.

This was in fact the "angles at the centre is double the angle at the circumference" rule.

I wonder how many method marks students will receive though, if they get 39.

Reply 43

Kh.Alparslan

Depends on if you used the right rule or not

Reply 44

MTSb2

You know the 20% holiday, i believe it was 200 pounds.(Original post by A.23)If you guys can remember anymore answers or think that any of the ones I've added so far are wrong then I'll edit it !

You know the 20% holiday, i believe it was 200 pounds.

Reply 45

louiwheezie

Original post by Smcgfx

If I wrote 4 and 14/16 for mixed fractions instead of 7/8 is it still correct

yeah bc the mark schemes almost always say oe (or equivalent) and it didn't say simplify

Reply 46

zacsymonds

Original post by Alice._tl

For number 2 i thought it asked for it as a mixed number??

That is mixed

Reply 47

zacsymonds

Original post by MTSb2

You mean £1200 because it increased by 20%

Reply 48

gcses.killme

Original post by Sara_hussain

How many marks were for circle theorem

4 marks

Reply 49

username6155728

Yeah but I expanded the first answer to get 25x^2+4

Reply 50

Yasa980

4 marks

Original post by Sara_hussain

How many marks were for circle theorem

Reply 51

username6155728

Original post by A.23

I'm just making an unofficial mark scheme for us to add too cause I haven't seen anyone else make one. We can discuss the answers in the chat below but I'm gonna add the answers that I've seen on other maths forums for now :smile:

1) division with decimals - 56.4 (3 marks)

2) fractions - 4 7/8 (3 marks)

3)125 surface area of cube is 150 cm2 find the volume (4 marks)

4) frequency polygon (2 marks)

5-pressure(cylinder) question- 3 (3 marks)

6- 20% holiday question - £1200 ( 2 marks)

7-the pentagon question -140degrees (3 marks)

8-the sphere 10 square root 2 (3 marks)

9-scatter graph
a) as age increases weight increases-its a positive correlation (1 mark)

b)4 months (2 marks)

10- a)venn diagram (1 mark)
b)7/10 (2 marks)

11) indices n =-2

12- probability of losing = 62/72 = 31/36 ( 2 marks)

17- circle theorem - 71° (4 marks)

18- plane/ cuboid question - 30 degrees (3marks)

19- carrots -30p
Tomatoes -54p (4 marks)

20- dessert question - 7 (2 marks)

for 11 b the answer was 5

Reply 52

JacobW1

Original post by hyekura

Circle theorem was 39 tho hes wrong.

nah man I put 39° as well but it's wrong. We used the 'angles in the same segment are equal' but it doesn't work because not all points are on the circumference. You had to use the 'the angle at the centre is twice that at the circumference' theorem

Reply 53

Yasa980

Original post by Alice._tl

For number 2 i thought it asked for it as a mixed number??

4 ⅞ is a mixed number

Reply 54

A.23

Original post by Yasa980

4 ⅞ is a mixed number

Oh yeah I changed it after they mentioned haha

Reply 55

LightningFlash

Original post by A.23

If you guys can remember anymore answers or think that any of the ones I've added so far are wrong then I'll edit it !

I don't remember what question it was, but for the two line equation question K = 3

Reply 56

LightningFlash

Original post by hyekura

Circle theorem was 39 tho hes wrong.

nope circle theorem was 71, ur wrong

Reply 57

wuhej

Original post by hyekura

Circle theorem was 39 tho hes wrong.

Nah g i got 39 too it's wrong. What we did was 'angles in the same segment are equal' but that only applies if it's at the circumference, which it wasnt; one was at the circumfernece but the other one was at the centre. You were meant to use angles at centre is 2x angle at circumference, and then do the rest as we did it