Answer key

Answer key - Mathematics Grade 10 ANSWERS TO EXERCISES AND CHAPTER TESTS All rights reserved It is unlawful to photocopy without permission from

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Mathematics Grade 10 ANSWERS TO EXERCISES AND CHAPTER TESTS All rights reserved. It is unlawful to photocopy without permission from Raven Research Associates or Access Copyright. 1 ANSWERS CHAPTER 1 Page 4 : Exercises 1.1 1 a. 3 b. 5 c. 2.5 d. -3.5 2 a. 6, 11, 16, 21, 26 b. -3, -7, -11, -15, -19 c. 8, 5, 2, -1, -4 d. 2.3,1.1,-0.1,-1.3,-2.5 3 a. 3, 8, 13, 18 b. 3, 10, 17, 24, 31 c. 100, 87, 74, 61, 48 d. 12, 4, -4, -12, -20 4 a. 2, -1, -4, -7, -10 b. -6, -1, 4, 9, 14 5 a. -38 b. 79 c. -101 d. 19 6 a. t n = 22 - 5n b. t n = 1 + 6n 7. a. 18 th term 7 b. 22 nd term 8 a. (i) 16, 19, 22, 25; (ii) t n = 13 + 3n; (iii) 62 8b.(i) -21, -18, -15, -12, -9; (ii) t n = -24 + 3n; (iii) 74 9 a. 35, b. 41 10. $45 11. Row 9 12a. 22, b. 3 13. x + 48 14. x + 31, x + 22, x + 13 15. 42 16. 77 Page 8 :Exercises 1.2 1a. 168 b. 236 c. -220 2a. 5150 b. -2650 c. 5250 3a. 684 b. -585 c. 1150 4a. 8342 b. -3589 c. 577.5 5a. 91 b. -230 c. 759 6a. 8120 b. -13 400 c. 2178 7. 1632 8. 305.6 m 9a. 7 weeks b. 30 jackets, $70 each 10. 12 320 11. 50, 57, 64, 71 12a. 143x b. 77x – 66y Page 12 : Exercises 1.3 1a. 2 b. -3 c. 3 1 d. -2 2a. 5, 15, 45, 135 b. 7, -14, 28, -56 c. -100, -50, -25, 2 25- d. 3, -1, 3 1 , 9 1- 3a. 4 1 b. 2 1- c. 704 d. 4 27- 4a. 1, 9, 81 or 1, -9, 81 b. 81, 27, 9, 3 c. 6,12, 24,48,96 or 6,-12,24,-48, 96 d. -5, -15, -45, -135 5a. 5, 15, 45, 135, 405 or 5, -15, 45, -135, 405 b. 800, 400, 200, 100, 50 or 800, -400, 200, -100, 50 6a. 2, 6, 18, 54 b. 2 1 , -2, 8, -32 7. 3.888 m 8. 262 144 9. $317 374.86 10. $25 331.13 11.-3,6,-12,24,-48,96 12. 11.25 cm 13a. -3 b. 1, 2, 4 Page 17 :Exercises 1.4 1. Item Regular Price Discount Rate Discount Net Price PST GST HST Final Price a. CD Jeans 22.99 64.99 15% 20% 3.45 13.00 19.54 51.99 1.37 3.64 1.37 3.64 - - 22.28 59.27 b. CD Jeans 22.99 64.99 15% 20% 3.45 13.00 19.54 51.99 0 0 1.37 3.64 - - 20.91 55.63 c. CD Jeans 22.99 64.99 15% 20% 3.45 13.00 19.54 51.99 1.47 3.90 1.37 3.64 - - 22.38 59.53 d. CD Jeans 22.99 64.99 15% 20% 3.45 13.00 19.54 51.99 1.56 4.16 1.37 3.64 - - 22.47 59.79 e. CD Jeans 22.99 64.99 15% 20% 3.45 13.00 19.54 51.99 - - - - 2.93 7.80 22.47 59.79 2. Item Regular Price Discount Rate Discount Net Price PST PST Rate GST Final Price a. T.V. 399.95 12% 47.99 351.96 35.20 10% 24.64 411.80 b. Watch 130.00 25% 32.50 97.50 6.83 7% 6.83 111.16 c. Picture 45.36 10% 4.54 40.82 3.06 7.5% 2.86 46.74 d. Back pack 59.52 50% 29.76 29.76 1.79 6% 2.08 33.63 e. Shirt 65.99 33% 21.78 44.21 3.54 3.09 50.84 3a. 9428 b. 784.89 c. 174 800 d. 72.165 e. 73 Mathematics Grade 10 ANSWERS TO EXERCISES AND CHAPTER TESTS All rights reserved. It is unlawful to photocopy without permission from Raven Research Associates or Access Copyright. 2 4a. Quebec b. Saskatchewan c. Prince Edward Island 5a. 0.843 b. 0.733 c. 1.132 Page 21 : Exercises 1.5 1a. Year Opening Balance Interest Rate Interest Earned Closing Balance 1 5000.00 8% 400 5400.00 2 5400.00 8% 432 5832.00 3 5832.00 8% 466.56 6298.56 4 6298.56 8% 503.88 6802.44 5 6802.44 8% 544.20 7346.64 7346....
View Full Document

This document was uploaded on 10/13/2010.

Page1 / 16

Answer key - Mathematics Grade 10 ANSWERS TO EXERCISES AND CHAPTER TESTS All rights reserved It is unlawful to photocopy without permission from

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online