# edexcel maths paper mark scheme unit 3

20_5384H_Paper_13_mark_scheme_-_November_2009

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• Created by: SONIKA
• Created on: 31-05-11 11:14

## Pages in this set

### Page 1

Mark Scheme (Results)
November 2009

GCSE

GCSE Mathematics (Modular) - 2381
Paper: 5384H/13H

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GCSE MATHEMATICS 2381 (MODULAR)

Edexcel is one of the leading examining and awarding bodies in the UK and throughout the world. We provide a wide range of
qualifications including academic, vocational, occupational and specific programmes for employers.
Through a network of UK and overseas offices, Edexcel's centres receive the support…

### Page 3

GCSE MATHEMATICS 2381 (MODULAR)

5384H/13H
1 (a) 24 1 B1 cao

(b) 1½ hours 1 B1 for 1½ hours oe (do not accept 1.30 hrs)

2 (a) 25 200 1 B1 cao
x 800
100
(b) 52 26 2 52 52
× 100 M1 for…

### Page 4

GCSE MATHEMATICS 2381 (MODULAR)

5384H/13H
5 (a) 12½ 3 M1 for 4 × x ­ 4 × 3 or 4x ­ 12 or (2x + 13) ÷ 4
M1 for 2x ­ 12 =13 or 4x = 2x + 25 or 0.5x = 3.25+ 3oe…

### Page 5

GCSE MATHEMATICS 2381 (MODULAR)

5384H/13H
7 (a) 3 1 3 2 5 2
+ = + = 1 2
8 4 8 8 8 M1 Use of common denominator: = or or
4 8
writing both fractions with a common denominator other
1 4 than…

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GCSE MATHEMATICS 2381 (MODULAR)

5384H/13H
9 5 q + 5p = 4 + 8p q = 4 + 3p 3 M1 for expansion of bracket or 5q + 5p or each term ÷5
5q = 4 + 8p ­ 5p 5 throughout
5q = 4…

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GCSE MATHEMATICS 2381 (MODULAR)

5384H/13H
13 2.5 x 10­7 2 B2 for 2.5 × 10­7
(B1 for 2.5 × 10n or a x 10­7)

14 1 3 M1 for y = mx + 8
y=- x+8
2 M1 for drawing y = ­½x + 8…

### Page 8

GCSE MATHEMATICS 2381 (MODULAR)

5384H/13H
18 (a) (5, ­4) 2 B2 for (5, ­4)
(B1 for (a, ­4) or (5,b) where a5 or 3 and b­4)

(b) (­2, 2) 2 B2 for (­2, 2)
(B1 for (a, 2) or (­2, b) where a­2 and b2)…

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GCSE MATHEMATICS 2381 (MODULAR)

5384H_13H
0911

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GCSE MATHEMATICS 2381 (MODULAR)

Further copies of this publication are available from
Edexcel Publications, Adamsway, Mansfield, Notts, NG18 4FN

Telephone 01623 467467
Fax 01623 450481

Email [email protected]

Order Code UG 022449
November 2009