Number Problems & Understanding Finance

SAEP Matric Success – Zisukhanyo Maths Lit Worksheet Tuesday 28th April 2009 Number Problems/Understanding Finances – ANSWERS 1. Exam Success, Activity 1.5, Q2 56 = 23.7; 84 = 22.3.7 a) 2.2.7 = 28 b) 2.2.2.3.7 = 168 d) 2√7 e) 2√7.√2.√3 = 2√42

c) √56 = 2√14; √84 = 2√21

2. Exam Success, Activity 1.5, Q5 a) Square = 3√3 cm; Cube = 2 3√5 cm b) Square = 3 x 1,7 = 5,1 cm; Cube = 2 x 1,7 = 3,4 cm c) Square = 5,20 cm Cube = 3,42 cm 3. Exam Success, Activity 1.6, Q2 a) 225 b) The magnitude is wrong, the answer is 258,86 4. Exam Success, Activity 1.6, Q3 7 tins 5. Exam Success, Activity 1.6, Q4 a) (i) 52 (ii) 5 b) (i) 50,3 (ii) 4,6

(iii) 169 (iii) 185,1

6. Exam Success, Activity 1.7, Q1 a) Yr 1 & 2 = 41,7%; Yr 2 & 3 = 41,2%; Yr 3 & 4 = 50% b) R4 320 c) Yr 1 = R14 400; Yr 2 = R20 400; Yr 3 = R28 800; Yr 4 = R43 200 d) R26 400 e) Yr 2 = R33 120; Yr 3 = R42 283,20; Yr 4 = R57 492,19 7. Exam Success, Activity 1.7, Q3 a) Completed table b) R310 c) 2,96% was saved. Not enough around 10% should be saved. 8. Exam Success, Activity 1.6, Q5 a) R645 b) (i) R22,50 (ii) R787,50 9. Exam Success, Activity 1.6, Q7 Piping R22,96; Labour R262,50; Subtotal R285,46; VAT R39,96; Total R325,42 10. Exam Success, Activity 1.6, Q9 a) R2 b) R16,80