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5 Minute Check

5 Minute Check

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5 Minute Check

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  1. 5 Minute Check Find the following. 1. What is .15 written as a percent? 2. What is 0.399 written as a percent? 3. What is 7 written as a percent? 4. What is 575% written as a mixed number? 5. What is 22.5% written as a fraction in simplest form? 6. What is 6 written as a decimal?

  2. 5 Minute Check Find the following. 1. What is .15 written as a percent?

  3. 5 Minute Check Find the following. 1. What is .15 written as a percent? .15 x 100 = 15%

  4. 5 Minute Check Find the following. 2. What is 0.399 written as a percent?

  5. 5 Minute Check Find the following. 2. What is 0.399 written as a percent? .399 x 100 = 39.9%

  6. 5 Minute Check Find the following. 3. What is 7 written as a percent?

  7. 5 Minute Check Find the following. 3. What is 7 written as a percent? 7 = 36 ÷ 5 = 7.2 7.2 x 100 = 720%

  8. 5 Minute Check Find the following. 4. What is 575% written as a mixed number?

  9. 5 Minute Check Find the following. 4. What is 575% written as a mixed number? 575 ÷ 100 = 5.75 5.75 = 5 5 = 5

  10. 5 Minute Check Find the following. 5. What is 22.5% written as a fraction in simplest form?

  11. 5 Minute Check Find the following. 5. What is 22.5% written as a fraction in simplest form? 22.5 ÷ 100 = .225 .225 = =

  12. 5 Minute Check Find the following. 6. What is 6 written as a decimal?

  13. 5 Minute Check Find the following. 6. What is 6 written as a decimal? 6 = 25 ÷ 4 = 6.25

  14. Tuesday, Oct 1 Lesson 2.7 Percent of a Number

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

  16. Percent of a Number

  17. Percent of a Number At the end of this lesson you should be able to answer the following questions. How do you find the percent of a number?

  18. Percent of a Number There are two methods to find the percent of a number.

  19. Percent of a Number Find 40% of 80. Method 1 Step 1 – Set up a proportion. 40 ? 100 = 80

  20. Percent of a Number Find 40% of 80. Method 1 Step 2 – Simplify. 40 ? 100 = 80 2? 5 = 80

  21. Percent of a Number Find 40% of 80. Method 1 Step 3 – Cross Multiply. 2? 5 = 80 2 x 80 = 160 ÷ 5 = 32

  22. Percent of a Number Find 60% of 90. (Do this on your own)

  23. Percent of a Number Find 60% of 90. (Do this on your own) 60? 100 =90 3? 5 =90 3 x 90 = 270 ÷ 5 = 54

  24. Percent of a Number Suppose there are 300 students at Central Middle School. Find the number of students that have cheese as a snack. Method 2 Step 1 – Convert the percent to a decimal. 15% = .15

  25. Percent of a Number Suppose there are 300 students at Central Middle School. Find the number of students that have cheese as a snack. Method 2 Step 2 – Multiply the Decimal by the number. .15 x 300 = 45

  26. Percent of a Number Suppose there are 300 students at Central Middle School. Find the number of students that have cheese as a snack. Find the number of students that have chips as a snack. (Do this on your own)

  27. Percent of a Number Suppose there are 300 students at Central Middle School. Find the number of students that have cheese as a snack. Find the number of students that have chips as a snack. 18% = .18 .18 x 300 = 54

  28. Percent of a Number Find 145% of 320. (Do this on your own)

  29. Percent of a Number Find 145% of 320. 145% = 1.45 1.45 x 320 = 464 Since the procedure to convert a percent to a decimal involves removing the percent sign, the answer should have no percent sign.

  30. Percent of a Number Find 145% of 320 Calculator Shortcut – “145”, press “2nd”, press “%”, then “320”, then press “enter”. (You may want to write this down)

  31. Percent of a Number Find 220% of 65. (Do this on your own)

  32. Percent of a Number Find 220% of 65. 220% = 2.2 2.2 x 65 = 143

  33. Percent of a Number Find .25% of 58. (Do this on your own)

  34. Percent of a Number Find .25% of 58. .25% = .0025 .0025 x 58 = .145

  35. Percent of a Number Find 128% of 550. (Do this on your own)

  36. Percent of a Number Find 128% of 550. 128% = 1.28 1.28 x 550 = 704

  37. Percent of a Number Find .3 % of 200. (Do this on your own)

  38. Percent of a Number Find .3 % of 200. .3% = .003 .003 x 200 = .6

  39. 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)

  40. 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? 20% = .20 .2 x 70 = 14

  41. 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)

  42. 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? 15% = .15 .15 x 20 = 3

  43. Percent of a Number Complete the Guided Practice on page 150 Agenda Notes Homework – Homework Practice 2-7 Due Wednesday, Oct 2 Chapter 2 Test - Friday, Oct 4 Due to conferences, no help session this chapter.