The document provides examples and practice problems for calculating percentages using proportions. It gives examples of finding the percentage that a part is of a total, such as 1/2 is 50% and 3/4 is 75%. Students are asked to set up and solve proportions to find percentages for problems like "19 is what percent of 95" and "16 out of 20 people prefer debit cards, what percent prefers debit?" The document emphasizes setting up accurate proportions to calculate unknown percentages.

1. Lesson 7.3 , For use with pages 354-358 Solve the proportion. 1. 49 63 = 21 x 2. 36 60 = x 55

2. Lesson 7.3 , For use with pages 354-358 Solve the proportion. ANSWER 27 ANSWER 33 1. 49 63 = 21 x 2. 36 60 = x 55

3. Finding the Percent (of a Number)

4. Essential Questions Where are different situations percents are used in real life? As a consumer, why is it important for you to know about percents?

5. Today we will be looking at how to find the percent of a fraction or ratio. For example – 4 out of 5 is ____% Again – some problems you may be able to do in your head, while others will require the use of a proportion.

6. Can you do these mentally? ½ is what percent? 1/5 is what percent? ¼ is ____% ¾ is _______% 1/10 is _____% 7/10 is _______% 15/100 is _____% 96/100 is _____% 50% 20% 25 75 10 70 15 96

7. Continue Mental Math 12/24 is ______% 36/48 is ______% 49 / 50 is _____% 40 / 50 is ______% 60 / 50 is ______% 50 75 98 80 120

8. Using a proportion to find the percent Proportion set up will not change, but the number you are looking for will. part % total 100 Which part will you be looking for in the proportion?

9. 19 is ____% of 95 Set it up using a proportion x = 20% 19 95 = x 100 95x 19( 100) = 95x 1,900 = 95 95

10. 18 is x% of 54 x = 33 1/3% 18 54 = x 100 54x 18( 100) = 54x 1,800 = 54 54

11. _____% of 25 is 18.75 x = 75% 18.75 25 = x 100 25x 18.75( 100) = 25x 1,875 = 25 25

12. GUIDED PRACTICE for Example 1 Use a percent proportion. 1. 63 is what percent of 75 ? x = 840 63 75 = x 100 75x 63( 100) = 75x 63,000 = 75 75

13. 16 out of 20 people prefer to use a debit card instead of writing a check. What percent prefers using a debit card? What % still prefers to use a check? x = 80% 16 20 = x 100 20x 16( 100) = 20x 1,600 = 20 20

14. During basketball practice, Lisa attempted 35 free throws, but made only 28 of them. What percent attempted did she make? Is she a good free-throw shooter? The average in the NBA is 76%. x = 80% 28 35 = x 100 35x 28( 100) = 35x 2,800 = 35 35

15. Last baseball season, Austin hit 48 home runs. So far this season, he has hit 30 home runs. The number of H-Runs hit this season is what percent of the number of H-Runs hit last season? x = 62.5% 30 48 = x 100 48x 30( 100) = 48x 3,000 = 48 48

16. Homework Worksheet 61-62 Page 61: Do column B Page 62: All You MUST show a PROPORTION for EVERY problem.