1. 5 Minute Check
Find. Round to the nearest tenth, if necessary. Complete in your notes. 1. What number is 25% of 180? 2. $3 is what percent of $40? 3. 9 is 45% of what number? 4. What percent of 60 is 12?

2. 5 Minute Check
Find. Round to the nearest tenth, if necessary. Complete in your notes. 1. What number is 25% of 180?

3. 5 Minute Check
Find. Round to the nearest tenth, if necessary. Complete in your notes. 1. What number is 25% of 180? ? 180 = ? 180 = · 1 ÷ 4 = 45

4. 5 Minute Check
Find. Round to the nearest tenth, if necessary. Complete in your notes. 2. $3 is what percent of $40?

5. 5 Minute Check
Find. Round to the nearest tenth, if necessary. Complete in your notes. 2. $3 is what percent of $40? $3 $40 = ? · 100 ÷ 40 = 7.5%

6. 5 Minute Check
Find. Round to the nearest tenth, if necessary. Complete in your notes is 45% of what number?

7. 5 Minute Check
Find. Round to the nearest tenth, if necessary. Complete in your notes is 45% of what number? 9 ? = ? = · 20 ÷ 9 = 20

8. 5 Minute Check
Find. Round to the nearest tenth, if necessary. Complete in your notes. 4. What percent of 60 is 12?

9. 5 Minute Check
Find. Round to the nearest tenth, if necessary. Complete in your notes. 4. What percent of 60 is 12? = ? = ? · 100 ÷ 5 = 20

10. Lesson 7.2.4 The Percent Equation
Thursday, Jan 29
Lesson The Percent Equation

11. Solve One-Step Inequalities

12. Solve One-Step Inequalities

13. The Percent Equation
Objective: To use the percent equation to solve percent problems.

14. The Percent Equation
You can use the percent equation to solve problems that involve percent.

15. The Percent Equation
part = percent (in decimal form) x whole

16. The Percent Equation
What number is 12% of 150? Round to the nearest tenth. Are we looking for the part, whole or percent?

17. The Percent Equation
What number is 12% of 150? Round to the nearest tenth. part = percent (in decimal form) x whole

18. The Percent Equation
What number is 12% of 150? Round to the nearest tenth. part = percent (in decimal form) x whole part =

19. The Percent Equation
What number is 12% of 150? Round to the nearest tenth. part = percent (in decimal form) x whole part = 0.12 x

20. The Percent Equation
What number is 12% of 150? Round to the nearest tenth. part = percent (in decimal form) x whole part = 0.12 x

21. The Percent Equation
What number is 12% of 150? Round to the nearest tenth. part = percent (in decimal form) x whole part = 0.12 x 150

22. The Percent Equation
What number is 12% of 150? Round to the nearest tenth. part = percent (in decimal form) x whole =0.12 x 150 x
150
x.12
300
1500
18.00

23. The Percent Equation
What number is 6% of 200? Round to the nearest tenth. part = percent (in decimal form) x whole Do this on your own.

24. The Percent Equation
What number is 6% of 200? Round to the nearest tenth. part = percent (in decimal form) x whole 12 = 0.06 x 200
200
x.06
12.00

25. The Percent Equation
What number is 72% of 50? Round to the nearest tenth. part = percent (in decimal form) x whole Do this on your own.

26. The Percent Equation
What number is 72% of 50? Round to the nearest tenth. part = percent (in decimal form) x whole 36 = 0.72 x 50 50
x.72
100
3500
36.00

27. The Percent Equation
30 is what percent of 150? Round to the nearest tenth. part = percent (in decimal form) x whole What are we looking for?

28. The Percent Equation
30 is what percent of 150? Round to the nearest tenth. part = percent (in decimal form) x whole 30 = p · 150

29. The Percent Equation
30 is what percent of 150? Round to the nearest tenth. part = percent (in decimal form) x whole 30 = p ·

30. The Percent Equation
30 is what percent of 150? Round to the nearest tenth. part = percent (in decimal form) x whole 30 = p · = p 5

31. The Percent Equation
30 is what percent of 150? Round to the nearest tenth. part = percent (in decimal form) x whole 30 = p · = p 5 20% = p .2
5)1.0
-10

32. The Percent Equation
22 is what percent of 40? Round to the nearest tenth. part = percent (in decimal form) x whole Do this on your own.

33. The Percent Equation
22 is what percent of 40? Round to the nearest tenth. part = percent (in decimal form) x whole 22 = p · = p 20 55% = p
.55
20)11.00
-100
100

34. The Percent Equation
14.4 is what percent of 96? part = percent (in decimal form) x whole Do this on your own.

35. The Percent Equation
14.4 is what percent of 96? part = percent (in decimal form) x whole 14.4 = p · % = p
.15
96)14.40
-96
480

36. The Percent Equation
16 is what percent of 68? Round to the nearest tenth. part = percent (in decimal form) x whole Do this on your own.

37. The Percent Equation
16 is what percent of 68? Round to the nearest tenth. part = percent (in decimal form) x whole 16 = p · = p % = p
.2352
17)4.00
-34 60
-51 90
-85 50

38. The Percent Equation
3 is 12% of what number? part = percent (in decimal form) x whole Do this on your own.

39. The Percent Equation
3 is 12% of what number? part = percent (in decimal form) x whole

40. The Percent Equation
3 is 12% of what number? part = percent (in decimal form) x whole 3 = .12 · w

41. The Percent Equation
3 is 12% of what number? part = percent (in decimal form) x whole 3 = .12 · w

42. The Percent Equation
3 is 12% of what number? part = percent (in decimal form) x whole 3 = .12 · w = w
25.
12)300.0
-24 60

43. The Percent Equation
55 is 11% of what number? part = percent (in decimal form) x whole Do this on your own.

44. The Percent Equation
55 is 11% of what number? part = percent (in decimal form) x whole 55 = .11 · w = w
500.
11)5500.0
-55

45. The Percent Equation
18 is 15% of what number? part = percent (in decimal form) x whole Do this on your own.

46. The Percent Equation
18 is 15% of what number? part = percent (in decimal form) x whole 18 = .15 · w = w
120.
15)1800.0
-15 30

47. The Percent Equation
A survey found that 25% of people aged gave up their home phone and only use a cell phone. If 320 people only use a cell phone, how many were surveyed? Do this on your own.

48. The Percent Equation
A survey found that 25% of people aged gave up their home phone and only use a cell phone. If 320 people only use a cell phone, how many were surveyed? part = percent (in decimal form) x whole 320 = .25 · w people were surveyed
1280.
25)
-25 70
- 50
200

49. The Percent Equation
A local bakery sold 60 loaves of bread in one day. If 65% of these were sold in the afternoon, how many were sold in the afternoon?

50. The Percent Equation
A local bakery sold 60 loaves of bread in one day. If 65% of these were sold in the afternoon, how many were sold in the afternoon? part = percent (in decimal form) x whole part = .65 · were sold in the afternoon 60
x .65
300
3600
39.00

51. The Percent Equation
Ruben bought 6 new books for his collection. This increased his collection by 12%. How many books did he have before his purchases?

52. The Percent Equation
Ruben bought 6 new books for his collection. This increased his collection by 12%. How many books did he have before his purchases? part = percent (in decimal form) x whole 6 = .12 · w He had 50 books before his purchase.
50.
12)600.0
-50

53. The Percent Equation
A store sold 550 video games during the month of December. If this made up 12.5% of its yearly video sales, how many video games did the store sell all year? part = percent (in decimal form) x whole

54. The Percent Equation
A store sold 550 video games during the month of December. If this made up 12.5% of its yearly video sales, how many video games did the store sell all year? part = percent (in decimal form) x whole 550 = .125 · w were sold all year.
4400.
125)
-500
500

55. The Percent Equation
Johanna’s parents give her $10 per week for lunch money.
If you need to find a percent of a number, explain how you can predict whether the part will be less than, greater than, or equal to the whole number.

56. Percent < 100, the part < whole Percent = 100, the part = whole
The Percent Equation
Johanna’s parents give her $10 per week for lunch money.
If you need to find a percent of a number, explain how you can predict whether the part will be less than, greater than, or equal to the whole number.
Percent < 100, the part < whole
Percent = 100, the part = whole
Percent > 100, the part > whole

57. The Percent Equation
Complete Mid-Chapter Check on Page 140 Bring to my desk when complete. Agenda Notes Homework Practice Due Friday, Jan 30 Mid-Chapter 7.2 Quiz - Friday, Jan 30