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Comprehensive Study Guide for Percentages, Fractions, and Probability Calculations

This comprehensive study guide covers essential concepts related to percentages, fractions, and probability calculations. It includes examples of converting percentages to fractions, finding percent changes, determining probabilities, and solving real-world problems involving interest and expenses. Each section contains scenarios to strengthen understanding and application. Use this guide to prepare effectively for tests and improve your math skills, ensuring you're well-equipped for any examination.

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Comprehensive Study Guide for Percentages, Fractions, and Probability Calculations

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  1. Ch. 7 Test Review Study Tips Look over wkbk. Pgs. Look over wkshts. Look over quizzes

  2. 100 pts Write the percent as a fraction in simplest form 25%

  3. 200 pts Write the percent as a fraction in simplest form 98%

  4. 100pts Write the percent as a fraction in simplest form 19%

  5. 100 pts Write 37% as a fraction.

  6. 200 pts Write the fraction 3/5 as a percent.

  7. 200 pts Write the fraction 7/8 as a percent.

  8. 200pts Write the fraction as a percent 14/20

  9. 500 pts Write the fraction 37/100 as a percent

  10. 200 pts 40% of 22

  11. 300 pts 30% of 5

  12. 300 pts 20% of 50

  13. 100 pts 14% of 120, rd to nearest whole in needed.

  14. 200 pts You are one of 18 finalists on a show. One finalist will win. What’s the probability you win? Write answer as a percent.

  15. 400 pts You income is $22,000. You spent 22% of your income on rent. How much did you spend on rent?

  16. 200 pts On a math test, you obtained 61 points. This is 88% of the total. How many total points were there?

  17. 100 pts Write 7% as a decimal

  18. 100 pts Write .0025% as a decimal.

  19. 100 pts Write .25% as a decimal

  20. 100 pts Write 3.16% as a decimal

  21. 200 pts Write 2.25 as a percent.

  22. 100 pts Write .78 as a percent

  23. 100 pts Write 1.85 as a percent.

  24. 100 pts Write .0082 as a percent.

  25. 200 pts Use proportion or equation: What number is 85% of 200?

  26. 200 pts Use proportion or equation: 25 is what percent of 400.

  27. 200 pts Use proportion or equation: What percent of 60 is 45?

  28. 200 pts Use proportion or equation: 22 is 40% of what number?

  29. 400 pts Each year our school organizes a carnival to raise money. This year raised $1150. Last year we raised $950. Find the percent increase.

  30. 600 pts. In a election, 5862 people voted. This is 63% of the population. How many people are in the town?

  31. 300 pts Find percent change. Original: 95 New: 54

  32. 200 pts Find percent change Original: 15 New: 23

  33. 300 pts Find new amount: Wholesale: $85, Markup: 40%

  34. 200 pts Find amount: Original: $18, Discount: 20%

  35. 200 pts You deposit $1450 into an account that earns 3% interest compounded annually. Find the balance of the account after 2yrs.

  36. 200 pts Find new amount: Original: $182, Sales tax: 6%

  37. 200 pts Find simple interest: P = $4200, r = 4%, t = 15yrs

  38. 600 pts Find simple annual interest and balance: P = $230, r = 8%, t = 6yrs

  39. 200 pts Find unknown quantity for simple annual interest: A = $5280, P = $4000, t = 7yrs, r = ?

  40. 400 pts Find the Original amounts for each percent of the circle graph. There were 50 people. 15% 25% 20% 40%

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