# Edexcel GCSE Mathematics B - MathsGeeks - Maths · PDF fileEdexcel GCSE Mathematics B Unit 2: Number, Algebra, Geometry 1 (Non-Calculator) Higher Tier Friday 12 November 2010 – Morning

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### Text of Edexcel GCSE Mathematics B - MathsGeeks - Maths · PDF fileEdexcel GCSE Mathematics B Unit 2:...

• Centre Number Candidate Number

Write your name hereSurname Other names

Total Marks

Paper Reference

Turn over

*N38396A0116*

Edexcel GCSE

Mathematics BUnit 2: Number, Algebra, Geometry 1

(Non-Calculator)Higher Tier

Friday 12 November 2010 MorningTime: 1 hour 15 minutes

You must have:Ruler graduated in centimetres and millimetres, protractor, compasses, pen, HB pencil, eraser. Tracing paper may be used.

5MB2H/01

Instructions

Use black ink or ball-point pen. Fill in the boxes at the top of this page with your name, centre number and candidate number. Answer all questions. Answer the questions in the spaces provided there may be more space than you need. Calculators must not be used.Information

The total mark for this paper is 60. The marks for each question are shown in brackets use this as a guide as to how much time to spend on each question. Questions labelled with an asterisk (*) are ones where the quality of your written communication will be assessed you should take particular care on these questions with your spelling, punctuation

and grammar, as well as the clarity of expression.

Read each question carefully before you start to answer it. Keep an eye on the time. Try to answer every question. Check your answers if you have time at the end.

N38396A2010 Edexcel Limited.

6/6/6/6/6/e2

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GCSE Mathematics 2MB01

Formulae Higher Tier

You must not write on this formulae page.Anything you write on this formulae page will gain NO credit.

Volume of a prism = area of cross section length Area of trapezium = (a + b)h

Volume of sphere = r3 Volume of cone = r2h

Surface area of sphere = 4 r2 Curved surface area of cone = rl

In any triangle ABC The Quadratic Equation The solutions of ax2+ bx + c = 0 where a 0, are given by

Sine Rule

Cosine Rule a2= b2+ c2 2bc cos A

Area of triangle = ab sinC

length

crosssection

rh

r

l

C

ab

c BA

13

a b csin A sinB sinC

xb b ac

a=

( )2 42

43

12

b

a

h

12

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You must write down all stages in your working.

1 Grace and Jack share 140 in the ratio 3 : 4

Work out the amount of money that Jack gets.

. ..

(Total for Question 1 is 2 marks)

2 (a) Simplify 4b 2c

. . ..

(1)

(b) Expand 3(2w 5t)

. . ..

(2)

(c) Expand and simplify (x + 7)(x 2)

. . ..

(2)

(Total for Question 2 is 5 marks)

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3 Work out 15% of 80

. . . . . . . . . . ..

(Total for Question 3 is 2 marks)

4

AFB and CHD are parallel lines. EFD is a straight line.

Work out the size of the angle marked x.

x = . . ..

(Total for Question 4 is 3 marks)

42

110

x Diagram NOTaccurately drawn

A

C

B

D

E

F

H

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5 Find the Lowest Common Multiple (LCM) of 8 and 12

. . ..

(Total for Question 5 is 2 marks)

6 The diagram shows 3 sides of a regular polygon.

140o 140o

Each interior angle of the regular polygon is 140.

Work out the number of sides of the regular polygon.

. . ..

(Total for Question 6 is 3 marks)

Diagram NOTaccurately drawn

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7 You can use this formula to change a temperature C, in C, to a temperature F, in F.

F C= +1 8 32.

(a) Use the formula to change 20C into F.

. . .. F(2)

(b) On the grid opposite, draw a conversion graph that can be used to change between temperatures in C and temperatures in F.

(3)

(c) Use your graph to change 100 F into C.

. . .. C(1)

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(Total for Question 7 is 6 marks)

10

20

30

40

50

60

70

80

90

100

110

120

130

10 20 30 40 500

0Temperature (oC)

Temperature (oF)

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8 Mrs Kunals garden is in the shape of a rectangle. Part of the garden is a patio in the shape of a triangle. The rest of the garden is grass.

Mrs Kunal wants to spread fertiliser over all her grass.

One box of fertiliser is enough for 32 m2 of grass.

How many boxes of fertiliser will she need? You must show your working.

. . ... . . . . . . . . ..

(Total for Question 8 is 4 marks)

Diagram NOTaccurately drawn

grass

12 m

7 m

6 m

3 m patio

• 9

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9 Last year, Jora spent

30% of his salary on rent

5

2 of his salary on entertainment

41 of his salary on living expenses.

He saved the rest of his salary.

Jora spent 3600 on living expenses.

Work out how much money he saved.

. . ..

(Total for Question 9 is 5 marks)

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*N38396A01016*

10 (a) Factorise fully 20w2y + 24wy3

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(2)

(b) Factorise m2 + 3m 40

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(2)

(Total for Question 10 is 4 marks)

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11 A water trough is in the shape of a prism.

Hamish fills the trough completely.

Water leaks from the bottom of the trough at a constant rate. 2 hours later, the level of the water has fallen by 20 cm.

Water continues to leak from the trough at the same rate.

How many more minutes will it take for the trough to empty completely?

. . . . . . . . . .. minutes

(Total for Question 11 is 6 marks)

120 cm

40 cm

Diagram NOTaccurately drawn

80 cm

30 cm

20 cm 40 cm

20 cm

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12 (a) Simplify m0

. . . . . . . . . ..

(1)

(b) Simplify (2x6y-1)3

. . . . . . . . . ..

(2)

(Total for Question 12 is 3 marks)

13 Work out (2.5 109) (5 103). Give your answer in standard form.

. . . . . . . . . . . . . . . . . . . . . . . . ..

(Total for Question 13 is 2 marks)

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*N38396A01316* Turn over

*14 The diagram shows a pentagon.

All measurements are in centimetres.

Show that the area of this pentagon can be written as 5x2 + x 6

(Total for Question 14 is 4 marks)

Diagram NOTaccurately drawn

3x + 5

2x + 1

2x 2

2x + 1

• 14

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15 Write as a single fraction in its simplest form

2

1

7 3

12x

x

x

x

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..

(Total for Question 15 is 4 marks)

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*N38396A01516*

*16

A

T

B

C O

Diagram NOTaccurately drawn

2xo

A, B and C are points on the circumference of the circle, centre O. TA and TB are tangents to the circle. CA = CB. Angle ATB = 2x.

Prove that angle ACB = (90 x).

(Total for Question 16 is 5 marks)

TOTAL FOR PAPER IS 60 MARKS

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