Int1_Mathematics_Units-1-2-and-3_2013

# Int1_Mathematics_Units-1-2-and-3_2013 - FOR OFFICIAL USE...

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*X100100101* © LI X100/10/01 6/17510 FOR OFFICIAL USE N A T I O N A L Q U A L I F I C A T I O N S 2 0 1 3 Fill in these boxes and read what is printed below. Scottish candidate number Day Month Year Date of birth *X1001001* Number of seat Total Mark X100/10/01 Full name of centre Town Forename(s) Surname 1 You may NOT use a calculator. 2 Write your working and answers in the spaces provided. Additional space is provided at the end of this question-answer book for use if required. If you use this space, write clearly the number of the question involved. 3 Full credit will be given only where the solution contains appropriate working. 4 Before leaving the examination room you must give this book to the Invigilator. If you do not you may lose all the marks for this paper. Use blue or black ink. Pencil may be used for graphs and diagrams only. W E D N E S D A Y , 2 2 M A Y 9 . 0 0 A M – 9 . 3 5 A M MATHEMATICS INTERMEDIATE 1 Units 1, 2 and 3 Paper 1 (Non-calculator)

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*X100100102* [X100/10/01] FORMULAE LIST Circumference of a circle: C = p d Area of a circle: A = p r 2 Theorem of Pythagoras: Trigonometric ratios in a right angled triangle: Page two c b a 2 + b 2 = c 2 a adjacent opposite hypotenuse tan opposite adjacent sin opposite hypotenuse cos x x x ° ° ° = = = adjacent hypotenuse
*X100100103* [X100/10/01] Page three All questions should be attempted. 1. ( a ) Find 16·7 + 5·83. ( b ) Find 9 × 2·13. ( c ) Find 70% of 340. DO NOT WRITE IN THIS MARGIN Marks 1 1 1 [Turn over

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*X100100104* [X100/10/01] 2. The scattergraph shows the weights and heights of a group of teenagers. ( a ) Draw a line of best fit through the points on the graph. ( b ) Use your line of best fit to estimate the height of a teenager whose weight is 80 kilograms. Marks 1 1 DO NOT WRITE IN THIS MARGIN Page four 190 180 170 160 150 140 60 70 Weight (kg) 80 Height (cm)
*X100100105* [X100/10/01] 3. Solve algebraically the inequality 8 x – 5 > 67. 4. The hire purchase price of this television is £700. How much will each payment be? Marks 2 3 DO NOT WRITE IN THIS MARGIN Page five [Turn over £136 Deposit followed by 6 equal payments £700

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*X100100106* [X100/10/01] 5. ( a ) Complete the table below for y = 2 x – 3.
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