5 Minute Check Complete on the back of your homework. 1. What is 27% of 40? 2. What is 15% of 64? 3. What is 32% 0f 75? 4. What is 46% of 35?

5 Minute Check Complete on the back of your homework. 1. What is 27% of 40?

5 Minute Check .27 2 decimal places x 40 0 decimal places Complete on the back of your homework. 1. What is 27% of 40? .27 2 decimal places x 40 0 decimal places 000 2 total decimal places +1080 10.80 27% of 40 is 10.8

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

5 Minute Check Complete on the back of your homework. 2. What is 15% of 64? .15 2 decimal places x 64 0 decimal places 60 2 total decimal places +900 9.60 15% of 64 is 9.6

5 Minute Check Complete on the back of your homework. 3. What is 32% 0f 75?

5 Minute Check Complete on the back of your homework. 3. What is 32% 0f 75? .32 2 decimal places x 75 0 decimal places 160 2 total decimal places +2240 24.00 32% of 75 is 24

5 Minute Check Complete on the back of your homework. 4. What is 46% of 35?

5 Minute Check Complete on the back of your homework. 4. What is 46% of 35? .46 2 decimal places x 35 0 decimal places 230 2 total decimal places +1380 16.10 46% of 35 is 16.1

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

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

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

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

Percent of a Number What is 56% of 85? .56 2 decimal place x 85 0 decimal place 280 2 total decimal places + 4480 47.60 56% of 85 is 47.6

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

Percent of a Number What is 7% of 91? .07 2 decimal place x 91 0 decimal place 7 2 total decimal places + 630 6.37 7% of 91 is 6.37

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

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

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

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

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

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

Percent of a Number What is 13.5% of 30? 4.050 13.5% 0f 30 is 4.05 .135 x 30 000 + 4050 4.050 13.5% 0f 30 is 4.05

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

Percent of a Number What is 47.1% of 66? 31.086 47.1% 0f 66 is 31.086 .471 x 66 2826 + 28260 31.086 47.1% 0f 66 is 31.086

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

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

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

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 0.3025

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

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 .20 00 + 1400 14.00

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

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 .15 100 + 200 3.00

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.

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 .2 8.4 The amount off will be $8.40

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?

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? 42.00 42 - 8.40 x .8 33.60 33.6 Keep in mind if the discount is 20%, that means you are still paying 80% of the price.

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.

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 .7 385.0 You will pay $385 for the phone.

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?

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 .12 300 +1500 18.00 He used 18 ounces of bleach.

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

Percent of a Number Is 16% of 40 the same as 40% of 16? 40 16 x .16 x .40 240 00 +400 +640 6.40 6.40 Yes, they are the same.

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.

Percent of a Number Find 15% of 15% of 15% of 500. How does this compare to 45% of 500? 500 75 11.25 500 x .15 x .15 x .15 x .45 2500 375 5625 2500 +5000 +750 +11250 + 20000 75.00 11.25 1.6875 225.00 45% of 500 is much larger.

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