1. MATH 8 CHAPTER 7 TEST REVIEW PERCENTS

2. 1.Use the percent equation to answer the question. 24 is what percent of 40? A)40%B)24% C) 60%D) % 24 40

3. 2.Find the new amount. Increase 80 by 10% A)90B)72 C) 88D)8

4. 3.Use the percent equation to answer the question. What number is 3.4% of 210? A)714B)0.0714 C) 7.14D)71.4

5. 4. After polling his pre-algebra class, Mr. Padgett discovered 17 of his 24 students were also enrolled in band. Approximately what percent of the students in his class were also enrolled in band? A)70.8%B)90.25% C)83.5%D)81.6%

6. 5.Which proportion can be used to solve the question? 83% of 84 is what number? A)B) C)D) = x 83 84100 = 84 83 x100 = 83 84 x100 = 83 x 84100

7. A)6.75B)8% C)4%D)16% 6. Sally bought a $1800 certificate of deposit. At the end of 6 months, she received $72 simple interest. What annual rate of interest did the certificate pay?

8. 7.Use the given information to find the total cost. Dinner bill: $98 Sales tax: 7% Tip: 16% A)$22.54B)$89.18 C)$106.82D)$120.54

9. 8.Identify the percent of change as an increase or decrease. Then find the percent of change. Round your answer to the nearest tenth if necessary. Original: 410 New: 195 A) increase, 104.8%B)decrease, 53.4% C)increase, 26.2%D)decrease, 52.4%

10. 9.Identify the percent of change as an increase or decrease. Then find the percent of change. Round your answer to the nearest tenth if necessary. Original: 30 New: 50 A)increase, 67.7%B)increase, 66.7% C)decrease, 133.4%D)decrease, 33.35%

11. 10.An article regularly selling for $51.47 is advertised at 20% off. Find the sale price to the nearest cent. A) $41.18B)$50.44 C)$61.76D)$10.29

12. 11.Faye scored 26 points in her basketball game. This core accounts for 13% of the total points she has scored during the season. How many points has Faye scored during the season? A)26B)39 C)155D)200

13. 12.Use the simple interest formula to find the unknown quantity.I = $90 P = _____ r = 4% t = 3 months A)$8500B)$9000 C)$750D)$950

14. 13.Use the percent equation to answer the question. 11 is 20% of what number? A) 55B) 550 C) D) none of these 11 20

15. 14. Use the given information to find the new amount. Original price: $16 Discount percent: 20% A) $3.20B)$19.20 C)$15.68D)$12.80

16. 15. Use the given information to find the new amount. Original price: $55 Sales tax: 8% A) $59.40B)$50.60 C)$4.40D)none of these

17. 16. Write the percent as a fraction. 19% A) 0.09B) C) D) 19 100 190 100 19 50

18. A) 84%B)80% C)11%D)16% 17.Your softball team is raffling a stereo system, and a total of 500 tickets have been sold. Your family bought 80 tickets. What is the probability that your family will win the stereo system?

19. A)68%B)6.8% C)680%D)0.68% 18.Write the fraction as a percent. 17 25

20. 19.Find the simple interest earned on the account. P = $400, r = 5.5%, t = 3 years A)$66B)$22 C)$69.70D)$7.33

21. A) 98.1%B)0.981% C)0.0981%D)9.81% 20.Write the decimal as a percent. 0.981

22. A)3B)20 C)33D)27 21.Find the new amount. Decrease 30 by 10%

23. A)27B)135 C)45D)153 22.Use a proportion to answer the question. What number is 85% of 180?

24. A)195.0B)1.95 C)19.5D)0.0195 23.Write the percent as a decimal. 195%

25. A)39.06B)170.94 C)191.4D)390.6 24.Find the percent of the number. 18.6% of 210

26. A)1.1B)1.3 C)11D)13 25.Find the percent of the number. 25% of 44

27. A)5.52%B)4.5% C)6.25%D)9% 26.Use the simple interest formula to find the unknown quantity. I = $1800 P = $3200 r = ____ t = 9 years

28. A)0.4%; decreaseB)5.0%; decrease C)5.0%; increaseD)0.4%; increase 27.In 1980, the circulation of a local newspaper was 3610. In 1981, its circulation was 3430. Find the percent of change in the newspapers’ circulation. Is this a percent increase or decrease?

29. A)$73.50B)$15.50 C)$103.50D)$475.50 28.Theatre Outfitters International is advertising full-size movie screens for 15% off the regular price. If the regular price of a full-size screen is $490, find the discount.

30. A)60B)83 C)65D)90 29.Kunjoo correctly answered 42 questions on a social studies test. He received a score of 70%. How many questions were on the test?

31. A)300B)219 C)30D)2187 30.During the soccer season, Monique scored goals on 27% of the shots she took. If she scored 81 goals, how many shots did she take?