1. ABC/ Mathematics / Chapter 3 / TP 3 - 1 / Rev 1 © 2003 General Physics Corporation EXAMPLE Ex 3-11 25 percent (25%) means 25 hundredths.

2. ABC/ Mathematics / Chapter 3 / TP 3 - 2 / Rev 1 © 2003 General Physics Corporation EXAMPLE Ex 3-14 Example 3-12 Convert 0.25 to a percentage. 0.25  100% = 25% Example 3-13 Convert 2 to a percentage. 2  100% = 200% Example 3-14 Convert 1.25 to a percentage. 1.25  100% = 125% Ex 3-12 Ex 3-13

3. ABC/ Mathematics / Chapter 3 / TP 3 - 3 / Rev 1 © 2003 General Physics Corporation EXAMPLE Ex 3-15 Convert 75% to a decimal number. = 0.75

4. ABC/ Mathematics / Chapter 3 / TP 3 - 4 / Rev 1 © 2003 General Physics Corporation EXAMPLE Ex 3-16 Convert 250% to a decimal number. = 2.5

5. ABC/ Mathematics / Chapter 3 / TP 3 - 5 / Rev 1 © 2003 General Physics Corporation EXAMPLE Ex 3-18 Example 3-17 Convert 92% to a decimal fraction. 92% = 0.92 Example 3-18 Convert 8% to a decimal fraction. 8% = 0.08 Ex 3-17

6. ABC/ Mathematics / Chapter 3 / TP 3 - 6 / Rev 1 © 2003 General Physics Corporation EXAMPLE Ex 3-19 Convert to a percentage. 0.75  100% = 75%

7. ABC/ Mathematics / Chapter 3 / TP 3 - 7 / Rev 1 © 2003 General Physics Corporation EXAMPLE Ex 3-20 0.4  100% = 40%

8. ABC/ Mathematics / Chapter 3 / TP 3 - 8 / Rev 1 © 2003 General Physics Corporation EXAMPLE Ex 3-21 = 2.25  100% = 225%

9. ABC/ Mathematics / Chapter 3 / TP 3 - 9 / Rev 1 © 2003 General Physics Corporation EXAMPLE Ex 3-22 Convert 45% to a fraction.

10. ABC/ Mathematics / Chapter 3 / TP 3 - 10 / Rev 1 © 2003 General Physics Corporation EXAMPLE Ex 3-23 Convert 1.8% to a fraction.

11. ABC/ Mathematics / Chapter 3 / TP 3 - 11 / Rev 1 © 2003 General Physics Corporation EXAMPLE Ex 3-24 Convert 32% to a common fraction.

12. ABC/ Mathematics / Chapter 3 / TP 3 - 12 / Rev 1 © 2003 General Physics Corporation EXAMPLE Ex 3-26 Example 3-25 Find the difference between 88% and 75%. 88% – 75% = 13% Example 3-26 Add 11% and 5%. 11% + 5% = 16% Ex 3-25

13. ABC/ Mathematics / Chapter 3 / TP 3 - 13 / Rev 1 © 2003 General Physics Corporation EXAMPLE Ex 3-27 EX 3-28 Example 3-27 Calculate the value of 6% of 75. 0.06 × 75 = 4.5 Example 3-28 Calculate the value of 125% of 10,000. 1.25  10,000 = 12,500

14. ABC/ Mathematics / Chapter 3 / TP 3 - 14 / Rev 1 © 2003 General Physics Corporation EXAMPLE Ex 3-29 Ex 3-30 Example 3-29 Calculate the percentage represented by 7 of 35 items. 0.2  100% = 20% Example 3-30 Calculate the percentage represented by 125 of 75 items. 1.667  100% = 166.7%

15. ABC/ Mathematics / Chapter 3 / TP 3 - 15 / Rev 1 © 2003 General Physics Corporation EXAMPLE Ex 3-31 0.05% of inspected bolts failed inspection. If 4 bolts failed inspection, calculate how many bolts total were inspected. 8,000 bolts were inspected.