1. Copyright © 2005 Pearson Education, Inc. (more on) Chapter 2

2. Copyright © 2008 Pearson Education, Inc. Slide 2-2 The Problem-Solving Power of Units 2-A Which of the following is a conversion factor? a) P = 2L + 2W b) 432 miles c) feet per second d) 1 yd 2 = 9 ft 2

3. Copyright © 2008 Pearson Education, Inc. Slide 2-3 The Problem-Solving Power of Units 2-A Which of the following is a conversion factor? a) P = 2L + 2W b) 432 miles c) feet per second d) 1 yd 2 = 9 ft 2

4. Copyright © 2008 Pearson Education, Inc. Slide 2-4 The Problem-Solving Power of Units 2-A Convert 4.5 hours to units of minutes. a) 270 minutes b) 250 minutes c) 90 minutes d) 150 minutes

5. Copyright © 2008 Pearson Education, Inc. Slide 2-5 The Problem-Solving Power of Units 2-A Convert 4.5 hours to units of minutes. a) 270 minutes b) 250 minutes c) 90 minutes d) 150 minutes

6. Copyright © 2008 Pearson Education, Inc. Slide 2-6 The Problem-Solving Power of Units 2-A Suppose you drive a distance of 220 miles at a speed of 50 miles per hour. How many hours does it take? a) 5.8 hours b) 4.4 hours c) 3.6 hours d) 0.42 hours

7. Copyright © 2008 Pearson Education, Inc. Slide 2-7 The Problem-Solving Power of Units 2-A Suppose you drive a distance of 220 miles at a speed of 50 miles per hour. How many hours does it take? a) 5.8 hours b) 4.4 hours c) 3.6 hours d) 0.42 hours

8. Copyright © 2008 Pearson Education, Inc. Slide 2-8 Standardized Units: More Problem- Solving Power 2-B State how much larger a square meter is than a square centimeter. a) Larger by a factor of 100 b) Larger by a factor of 1000 c) Larger by a factor of 10,000 d) Larger by a factor of 1,000,000

9. Copyright © 2008 Pearson Education, Inc. Slide 2-9 Standardized Units: More Problem- Solving Power 2-B State how much larger a square meter is than a square centimeter. a) Larger by a factor of 100 b) Larger by a factor of 1000 c) Larger by a factor of 10,000 d) Larger by a factor of 1,000,000

10. Copyright © 2008 Pearson Education, Inc. Slide 2-10 Standardized Units: More Problem- Solving Power 2-B A man is 6.1 feet tall. Find his height in meters to the nearest tenth. a) 1.9 meters b) 6.1 meters c) 5.2 meters d) 20.7 meters

11. Copyright © 2008 Pearson Education, Inc. Slide 2-11 Standardized Units: More Problem- Solving Power 2-B A man is 6.1 feet tall. Find his height in meters to the nearest tenth. a) 1.9 meters b) 6.1 meters c) 5.2 meters d) 20.7 meters

12. Copyright © 2008 Pearson Education, Inc. Slide 2-12 Standardized Units: More Problem- Solving Power 2-B A temperature of 103 o C would be considered as which of the following? a) Normal body temperature b) Boiling c) When water freezes d) A cool day at the beach

13. Copyright © 2008 Pearson Education, Inc. Slide 2-13 Standardized Units: More Problem- Solving Power 2-B A temperature of 103 o C would be considered as which of the following? a) Normal body temperature b) Boiling c) When water freezes d) A cool day at the beach

14. Copyright © 2008 Pearson Education, Inc. Slide 2-14 Problem-Solving Guidelines and Hints 2-C Suppose that you have 7 blue socks in a drawer and 4 black socks in a drawer. How many socks must you take from the drawer to be certain that you have a pair of blue socks? a) 3 b) 7 c) 4 d) 6

15. Copyright © 2008 Pearson Education, Inc. Slide 2-15 Problem-Solving Guidelines and Hints 2-C Suppose that you have 7 blue socks in a drawer and 4 black socks in a drawer. How many socks must you take from the drawer to be certain that you have a pair of blue socks? a) 3 b) 7 c) 4 d) 6

16. Copyright © 2008 Pearson Education, Inc. Slide 2-16 Problem-Solving Guidelines and Hints 2-C Suppose that 5 turns of a wire are wrapped around a pipe with length 24 inches and a circumference of 8 inches. What is the length of the wire? a) 24 inches b) 40 inches c) 50 inches d) 120 inches

17. Copyright © 2008 Pearson Education, Inc. Slide 2-17 Problem-Solving Guidelines and Hints 2-C Suppose that 5 turns of a wire are wrapped around a pipe with length 24 inches and a circumference of 8 inches. What is the length of the wire? a) 24 inches b) 40 inches c) 50 inches d) 120 inches

18. epw 9/10/08 Slide 2-18 Problem-Solving Guidelines and Hints 2-C Suppose that 5 turns of a wire are evenly wrapped around a pipe with length 30 inches and a circumference of 8 inches such that the wire starts at one end of the pipe and ends at the other. What is the length of the wire? a) 40 inches b) 45 inches c) 50 inches d) 55 inches

19. Slide 2-19 3 4 3:4:5 Triangle (“Pythagorian Triple”) 5  epw 9/10/08

20. Slide 2-20 ? ? Equivalent Problem epw 9/10/08

21. Slide 2-21 30” 40” Equivalent Problem epw 9/10/08

22. Slide 2-22 Problem-Solving Guidelines and Hints 2-C Suppose that 5 turns of a wire are evenly wrapped around a pipe with length 30 inches and a circumference of 8 inches such that the wire starts at one end of the pipe and ends at the other. What is the length of the wire? a) 40 inches b) 45 inches c) 50 inches d) 55 inches

23. epw 9/10/08 Slide 2-23 Problem-Solving Guidelines and Hints 2-C Suppose that 5 turns of a wire are evenly wrapped around a pipe with length 30 inches and a circumference of 8 inches such that the wire starts at one end of the pipe and ends at the other. What is the length of the wire? a) 40 inches b) 45 inches c) 50 inches d) 55 inches