1. Wednesday, Jan 8 Chapter 1 and 2 Review

2. Chapter 1 and 2 Review Ernesto has painting class every 2 weeks. Kamala has pottery class every 5 weeks. Ernesto and Kamala met at the art building for class this week. How many weeks will it be before they see each other again? (Do this on your own)

3. Chapter 1 and 2 Review Ernesto has painting class every 2 weeks. Kamala has pottery class every 5 weeks. Ernesto and Kamala met at the art building for class this week. How many weeks will it be before they see each other again? What we looking for is called what?

4. Chapter 1 and 2 Review Ernesto has painting class every 2 weeks. Kamala has pottery class every 5 weeks. Ernesto and Kamala met at the art building for class this week. How many weeks will it be before they see each other again? 2; 2, 4, 6, 8, 10, 12, 14……. 5; 5, 10, 15, 20……. They will see each other again in 10 weeks.

5. Chapter 1 and 2 Review A ratio (sometimes written as a fraction) is a comparison of two quantities by division.

6. Chapter 1 and 2 Review Mike has 12 action, 15 comedy and 9 drama DVDs. Find the ratio of action DVDs to the total number of DVDs. Do this on your own.

7. Chapter 1 and 2 Review Mike has 12 action, 15 comedy and 9 drama DVDs. Find the ratio of action DVDs to the total number of DVDs. 12: 36 Remember- it must be in simplest form 12: 36 = 1: 3

8. Chapter 1 and 2 Review A rate is a ratio comparing quantities of different kinds of units.

9. Chapter 1 and 2 Review Samantha picked 45 oranges in 5 minutes. How many oranges did she pick per minute? Do this on your own.

10. Chapter 1 and 2 Review Samantha picked 45 oranges in 5 minutes. How many oranges did she pick per minute? 45 oranges ÷ 5 9 oranges 5 minute ÷ 5 = 1 minute This called what?

11. Chapter 1 and 2 Review A unit rate is a rate with a denominator of 1 when the rate is written as a fraction. To determine the unit rate, divide the fraction by the number in the denominator.

12. Chapter 1 and 2 Review Four potted plants cost $24. What is the price per plant (unit price)? Do this on your own.

13. Chapter 1 and 2 Review Four potted plants cost $24. What is the price per plant (unit price)? 24 dollars ÷ 4 6 dollars 4 plants ÷ 4 = 1 plant 6 dollars per plant. Reminder – when they ask “something per whatever”, that whatever unit needs to be in the denominator.

14. Chapter 1 and 2 Review A ratio table is a table which contains equivalent ratios.

15. Chapter 1 and 2 Review Below is an incomplete ratio table. Complete the ratio table with equivalent ratios. Do this on your own. Remember we can only multiply and divide to get from one ratio to another! 12 6 164

16. Chapter 1 and 2 Review Below is an incomplete ratio table. Complete the ratio table with equivalent ratios. How did we go from 12 to 6? 12 6 164

17. Chapter 1 and 2 Review Below is an incomplete ratio table. Complete the ratio table with equivalent ratios. How did we go from 12 to 6? ÷ 2 12 6 164

18. Chapter 1 and 2 Review Below is an incomplete ratio table. Complete the ratio table with equivalent ratios. What is 16 ÷ 2? 12 6 164

19. Chapter 1 and 2 Review Below is an incomplete ratio table. Complete the ratio table with equivalent ratios. What is 16 ÷ 2? 8 12 6 16 8 4

20. Chapter 1 and 2 Review Below is an incomplete ratio table. Complete the ratio table with equivalent ratios. How did we go from 16 to 4? 12 6 16 8 4

21. Chapter 1 and 2 Review Below is an incomplete ratio table. Complete the ratio table with equivalent ratios. How did we go from 16 to 4? ÷ 4 12 6 16 8 4

22. Chapter 1 and 2 Review Below is an incomplete ratio table. Complete the ratio table with equivalent ratios. What is 12 ÷ 4? 12 6 16 8 4

23. Chapter 1 and 2 Review Below is an incomplete ratio table. Complete the ratio table with equivalent ratios. What is 12 ÷ 4? 3 12 6 3 16 8 4

24. Chapter 1 and 2 Review Mr. Adams bought 9 lbs of grass seed for $6. How much would he pay for 15 lbs of grass seed? Do this on your own.

25. Chapter 1 and 2 Review Mr. Adams bought 9 lbs of grass seed for $6. How much would he pay for 15 lbs of grass seed? 9lbs 15 lbs $6 = $x 6 x 15 = 90 ÷ 9 = $10

26. Chapter 1 and 2 Review What is one fifth of 120? Do this on your own.

27. Chapter 1 and 2 Review What is one fifth of 120? 24 TI -30 Shortcut 1, A b/c, 5, x, 120, = To find the fraction or percent of a number, multiply that number by the fraction or percent.

28. Chapter 1 and 2 Review Find 54% of 132. Do this on your own.

29. Chapter 1 and 2 Review Find 54% of 132. 71.28 TI -30 Shortcut 54, 2 nd, %, 132, =

30. Chapter 1 and 2 Review Write 15.5% as a fraction. Do this on your own.

31. Chapter 1 and 2 Review Write 15.5% as a fraction. 31 200 TI -30 Shortcut 15.5, 2 nd, %, 2 nd, F D, =

32. Chapter 1 and 2 Review Write 15.5% as a decimal. Do this on your own.

33. Chapter 1 and 2 Review Write 15.5% as a decimal. 0.155 TI -30 Shortcut 15.5, 2 nd, %, =

34. Chapter 1 and 2 Review 5 Write 8 as a percent. Do this on your own.

35. Chapter 1 and 2 Review 5 Write 8 as a percent. 62.5% TI -30 Shortcut 5, A b/c, 8, 2nd, F D, =, “times”, 100, = or 5 ÷ 8 x 100

36. Chapter 1 and 2 Review 1 Write 5 8 as a decimal. Do this on your own.

37. Chapter 1 and 2 Review 1 Write 5 8 as a decimal. 5.125 TI -30 Shortcut 5, A b/c, 1, A b/c, 8, 2nd, F D, = or Remember the whole number in the fraction will be the same as the whole number in the decimal (which is 5). 1 ÷ 8 =.125 5.125

38. Chapter 1 and 2 Review Write 0.005 as a fraction. Do this on your own.

39. Chapter 1 and 2 Review Write 0.005 as a fraction. 1 200 TI -30 Shortcut.005, 2 nd, F D, =

40. Chapter 1 and 2 Review Write 555% as a decimal. Do this on your own.

41. Chapter 1 and 2 Review Write 555% as a decimal. 5.55 TI -30 Shortcut 555, 2 nd, %, =

42. Chapter 1 and 2 Review What is the difference between a ratio and rate?

43. Chapter 1 and 2 Review What is the difference between a ratio and rate? A rate is a ration with separate units.

44. Chapter 1 and 2 Review What is the difference between a rate and unit rate?

45. Chapter 1 and 2 Review What is the difference between a rate and unit rate? A unit rate has a denominator of 1 unit.

46. Chapter 1 and 2 Review A ratio table is made up of __________ ratios.

47. Chapter 1 and 2 Review Agenda Notes Homework – Chapter 1 and 2 Review Due Thursday, Jan 9 Semester Exam – Monday, Jan 13