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5 Minute Check Complete on the back of your homework.

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Presentation on theme: "5 Minute Check Complete on the back of your homework."— Presentation transcript:

1 5 Minute Check Complete on the back of your homework.
What is 27% of 40? 2. What is 15% of 64? What is 32% 0f 75? What is 46% of 35?

2 5 Minute Check Complete on the back of your homework.
What is 27% of 40?

3 5 Minute Check .27 2 decimal places x 40 0 decimal places
Complete on the back of your homework. What is 27% of 40? decimal places x decimal places total decimal places +1080 10.80 27% of 40 is 10.8

4 5 Minute Check Complete on the back of your homework.
2. What is 15% of 64?

5 5 Minute Check Complete on the back of your homework.
2. What is 15% of 64? decimal places x decimal places total decimal places +900 9.60 15% of 64 is 9.6

6 5 Minute Check Complete on the back of your homework.
What is 32% 0f 75?

7 5 Minute Check Complete on the back of your homework.
What is 32% 0f 75? decimal places x decimal places total decimal places +2240 24.00 32% of 75 is 24

8 5 Minute Check Complete on the back of your homework.
What is 46% of 35?

9 5 Minute Check Complete on the back of your homework.
What is 46% of 35? decimal places x decimal places total decimal places +1380 16.10 46% of 35 is 16.1

10 Lesson 2.7b Percent of a Number
Friday, Sept 18 Lesson 2.7b Percent of a Number

11 Percent of a Number Objective: To find the percent of a number.

12 Percent of a Number To find the percent of a number, multiply the number by the decimal equivalent of the percent.

13 Percent of a Number What is 56% of 85? Do this on your own.

14 Percent of a Number What is 56% of 85? decimal place x 85 0 decimal place total decimal places % of 85 is 47.6

15 Percent of a Number What is 37% of 44? Do this on your own.

16 Percent of a Number What is 7% of 91? decimal place x 91 0 decimal place 7 2 total decimal places % of 91 is 6.37

17 Percent of a Number Another method to find the percent of a number is to use proportions. Remember that a percent is just that number over 100. Example: 34% = 𝟑𝟒 𝟏𝟎𝟎

18 7 100 = ? 91 Percent of a Number What is 7% of 91?
The Proportion Method = ? 91 7 x 91 = 637 ÷ 100 = 6.37 (Dividing by 100 is the same as moving the decimal place two places to the left)

19 Percent of a Number What is 67% of 19? Do this on your own.

20 67 100 = ? 19 Percent of a Number What is 67% of 19?
The Proportion Method = ? 19 67 x 19 603 670 1273 ÷ 100 = 12.73

21 The Traditional Method
Percent of a Number What is 67% of 19? The Traditional Method .67 x 19 603 670 12.73

22 Percent of a Number What is 13.5% of 30? Do this on your own.

23 Percent of a Number What is 13.5% of 30? 4.050 13.5% 0f 30 is 4.05
.135 x 30 000 4.050 13.5% 0f 30 is 4.05

24 Percent of a Number What is 47.1% of 66? Do this on your own.

25 Percent of a Number What is 47.1% of 66? 31.086 47.1% 0f 66 is 31.086
.471 x 66 2826 31.086 47.1% 0f 66 is

26 Percent of a Number What is 250% of 15? Do this on your own.

27 Percent of a Number What is 250% of 15? 250% 0f 15 is 37.5 2.5 x 15
125 + 250 37.5 250% 0f 15 is 37.5

28 Percent of a Number What is .55% of 55? Do this on your own.

29 Percent of a Number What is .55% of 55? .55% 0f 55 is 0.3025 .0055
x 55 275 + 2750 .3025 .55% 0f 55 is

30 Percent of a Number In a recent state Special Olympics meet, Franklin County sent a team of 70 players. Twenty percent of the team competed in soccer. How many athletes competed in soccer? Do this on your own

31 Percent of a Number In a recent state Special Olympics meet, Franklin County sent a team of 70 players. Twenty percent of the team competed in soccer. How many athletes competed in soccer? 14 players 70 x

32 Percent of a Number In this same meet 15% of the team from Delaware County competed in tennis. If there were 20 members on the team, how many played tennis? Do this on your own

33 Percent of a Number In this same meet 15% of the team from Delaware County competed in tennis. If there were 20 members on the team, how many played tennis? 3 played tennis 20 x

34 Percent of a Number The original price of a pair of shoes is $42. The sale price is 20% off the original price. What is the amount off the original price? Do this on your own.

35 Percent of a Number The original price of a pair of shoes is $42. The sale price is 20% off the original price. What is the amount off the original price? 42 x The amount off will be $8.40

36 Percent of a Number The original price of a pair of shoes is $42. The sale price is 20% off the original price. How much will you pay for the shoes?

37 Percent of a Number The original price of a pair of shoes is $42. The sale price is 20% off the original price. How much will you pay for the shoes? x Keep in mind if the discount is 20%, that means you are still paying 80% of the price.

38 Percent of a Number The price of a phone is $550 and the sale price is 30% off. How much will you pay for the phone? Do this on your own.

39 Percent of a Number The price of a phone is $550 and the sale price is 30% off. How much will you pay for the phone? 550 x You will pay $385 for the phone.

40 Percent of a Number Jack is mixing a cleaning solution that is 12% bleach. After mixing the solution, Jack has 150 ounces of cleaning solution. How many ounces of bleach did he use?

41 Percent of a Number Jack is mixing a cleaning solution that is 12% bleach. After mixing the solution, Jack has 150 ounces of cleaning solution. How many ounces of bleach did he use? 150 x He used 18 ounces of bleach.

42 Percent of a Number Is 16% of 40 the same as 40% of 16? Do this on your own.

43 Percent of a Number Is 16% of 40 the same as 40% of 16? x .16 x Yes, they are the same.

44 Percent of a Number Find 15% of 15% of 15% of 500. How does this compare to 45% of 500? Do this on your own.

45 Percent of a Number Find 15% of 15% of 15% of 500. How does this compare to 45% of 500? x .15 x .15 x .15 x % of 500 is much larger.

46 Percent of a Number Agenda Notes No Homework – Homework Practice 2.7b Due by the end of class Show all work and circle answer. Mid-Chapter 2 Quiz Monday, Sept 21


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