MATH 8 CHAPTER 7 TEST REVIEW PERCENTS

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

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

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

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%

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

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?

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

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%

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%

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

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

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

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

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

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

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

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?

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

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

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

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

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

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

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

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

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

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

A)$73.50B)$15.50 C)$103.50D)$ 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.

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?

A)300B)219 C)30D) 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?