1. Applications of Percent

2. What percent of 54 is 18? If necessary, round to the nearest tenth of a percent.

3. 33.3%

4. Emma has already read 8 of 40 books on her summer reading list. What percent of the books on her list has she read already?

5. 20%

6. 16 is 64% of what number? If necessary, round to the nearest tenth.

7. 25

8. The Mogul Runners ski club planned a trip to Park City. Of the total number of club members, 12 signed up to go. If this is 75% of the club, how many members does the ski club have?

9. 16 Members

10. Find the percent of decrease from 28 to 20. Round to the nearest tenth of a percent if necessary.

11. 28.6% Decrease

12. A toy store’s percent of markup is 35%. A model train costs the store $200. Find the markup.

13. $70

14. A sporting goods store pays $165 for a rubber raft. The percent of markup is 40%. Find the raft’s selling price.

15. $231

16. All swimming equipment is on sale with a 35% discount. A snorkeling set rings up for $78. Find the regular price.

17. $120

18. At the beginning of 1995, the town of Canyon Ridge had 1,200 residents. The rate of population growth after that was 6% per year. What was the population at the beginning of 1997?

19. 1996: 1272 1997: 1348.32 1348 Residents

20. Suppose you roll three 6-sided number cubes and pick a letter of the alphabet at random. Find the probability you roll 3 numbers greater than 4 and pick one of the vowels a, e, i, o, or u.

22. Jason and Kyle both choose a number from 1 to 10 at random. What is the probability that both numbers are even numbers greater than 7?

24. A drawer contains 6 red socks, 8 white socks, and 4 blue socks. Without looking, you select a sock at random, replace it, and select a second sock at random. What is the probability that the first sock is blue and the second sock is red?

26. Challenge: Two urns each contain green balls and blue balls. Urn I contains 4 green balls and 6 blue balls, and Urn II contains 6 green balls and 2 blue balls. A ball is drawn at random from each urn. What is the probability that both balls are the same color?

28. Find the probability that 2 students chosen at random were both born on the weekend.

30. A local weather forecaster is accurate 80% of the time when predicting precipitation for the day. What is the probability that she will make correct precipitation predictions 3 days in a row?

32. You select a card at random. Without replacing the card, you select a second card. Find P(M, then H)

34. You select a card at random. Without replacing the card, you select a second card. Find P(T, then a vowel).

36. You select a card at random. Without replacing the card, you select a second card. Find P(C, then T or S).

38. The Math Club operates a concession stand during special school events. One of their best-selling items is packaged fruit snacks. They buy cases of 24 individual bags of the snacks. Each case costs $12.00. a. The percent markup for the snacks is 40%. What is the selling price of one individual bag of fruit snacks? b. During the holiday concert, the profit from the sale of the fruit snacks was $8.60. How many bags of fruit snacks did they sell?

39. a. $0.70 b. 43 packages