1. 50 percent of ______ = 21 A. 11.5 B. 80 C. 4.2 D. 42 2. Sales tax in your state is 6.5 %. If your total purchase came to $30.00, how much would your sales tax be? A. $ 1.95 B. 19.5 cents C. $ 6.50 D. $ 4.00 3. A big sale is advertising that dresses are 75 % off regular price. If the pre-sale price is $50.00, what can you expect the price to be after the 75 percent discount has been applied? A. $37.50 B. $25.00 C. $12.50 D. $ 10.49 4. Mary is trying to determine the average grade that her math students received on the last exam, which was worth 100 points. Student A received 70 points, Student B received 95 points, Student C received 52 points, Student D received 88 points and Student F received 90 points. What is the average grade in Mary's class? A. 79 B. 197.5 C. 85 D. 74 5. In Kent's science class, his teacher gives five exams. Test 1 is worth 15 percent of his grade. Test 2 is also worth15 percent of the final grade. Tests 3 and 4 are worth 20 percent each of his grade. Test 5 is each worth 30 percent. If Kent scored 70 percent on Test 1; 92 percent on Test 2; 85 percent on Test 3; 62 percent on Test 4; and 100 percent on Test 5, what will the final percentage in the class be based on the averages of his tests? A. 56 % B. 78 % C. 83.7 % D. 89.2 % Answers for Percents and Averages1. D (42) 2. A ($1.95) 3. C ($12.50) 4. A (79) 5. C (83.7%) |