7Preap Week 30 REVIEW CCA
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7th Grade PreAP Week 30 REVIEW CCA
1. Which does NOT represent a linear relationship? a.
b.
c.
d.
2. If Marty continues to walk at the same rate, how far will he walk in 3.1 hours?
a. 2.5 miles b. 7.5 miles c. 12.4 miles d. 22.6 miles
7. Which transformation does NOT produce congruent figures? a. 270º rotation about the origin 3. The graph shows the costs of renting a bicycle for b. translation up 5 units different numbers of miles. If Sierra rides a bicycle for c. dilation by a scale factor of 3 24 miles, what is the cost, in dollars? Round to the d. reflection over the x-axis nearest whole number.
8. Allie is moving a piece of artwork on her wall. The original location of the artwork is shown in the graph below. She rotates the artwork 90 about vertex T. Then she uses the algebraic representation (x, y) (x 4, y 3) to move the artwork. What are the coordinates of the vertex A after the transformations?
4. Ella is following a map. She starts at the park, which is located at (2, 4). She moves up 5 units, left 3 units, down 2 units, right 1 unit, and left 4 units. At what location does Ella stop? a. ( 4, 1) b. (7, 3) c. ( 5, 2) d. ( 4, 5)
5. Fred rotates the rectangle 180 about the origin, then reflects the rectangle over the x-axis, and then translates 9. Sam went to an amusement park. From the main the rectangle up 2 units and left 5 units. What are the entrance he used the algebraic representation new coordinates of point X? (x, y) (x 10, y 14) to walk to a ride. Which ride did Sam walk to?
6. Which transformation produces congruent figures? a. dilation by a scale factor of 1 b. dilation by a scale factor of 0.25 c. dilation by a scale factor of 0.25 d. dilation by a scale factor of 1
Page 2 10. The table below shows the relationship between the weight, in kilograms, and the height, in centimeters, of 12. The cafeteria manager at the junior high surveys 85 boys of the age group 2-5 years. Which scatter plot best students by asking every fifth student who enters the represents the data? cafeteria to name his or her favorite lunch item. If there are 425 students in the school, how many more students prefer pizza instead of tacos?
a. b.
a. 12 students b. 60 students c. 75 students d. 135 students
c. d. 13. On the first day of camp, the counselors surveyed every 10th camper that got off the bus about their favorite activity. If there are 550 campers, how many more would rather swim than play basketball?
11. The table below shows the amount of monthly rainfall in inches over a 5 month period. What is the difference between the interquartile range and the mean absolute deviation, to the nearest tenth? 14. The double box plot shows the ages of the students enrolled in two different computer classes. Use the information to determine which statement is NOT an inference that can be made about the two populations.
IQR______M.A.D. ______
Difference: ______
a. The oldest student enrolled in either class is 22 years old. b. The interquartile range for the Mon./Wed. class is twice the interquartile range for the Tues./Thurs. class. c. The youngest student enrolled in either class is 19 years old.
Page 3 d. Fifty percent of the students enrolled in the Tues./Thurs. class are between the ages of 21 and 23. 15. The double dot plot shows the number of points scored by Sam and Daniel in 15 basketball games. What is the difference between the medians?
18. It took Bethany of an hour to complete her science homework. It took Bethany of the amount of time to do her math homework as her science homework. How many more minutes did it take Bethany to complete her science than her math homework?
16. A custodian at an elementary school is painting the playground. The custodian asked students in the school what color they wanted the playground painted. The 19. Mike jogged 6 laps around a 0.25-mile track on results are shown in the graph. How many more students Monday and 7 laps on Tuesday. How many miles did he voted for orange than for blue or yellow? jog on Monday and Tuesday combined?
20. At the beginning of 2012, Jacob’s savings account had $675.20. He deposited $40 each month and earned $66.50 interest for the year. What was the percent of increase for Jacob’s savings account at the end of the a. 20 students b. 30 students year, to the nearest whole percent? c. 40 students d. 50 students
17. Sunshine Fitness tracked the usage of cardio equipment to determine how many members used certain pieces of equipment last weekend. The circle graph shows the results. How many of the 500 members that used cardio equipment did NOT use a stepper or treadmill?
21. A recipe for a dessert requires 3 cups of strawberries for every cups of yogurt used. At this rate, how much yogurt should be used if 2 cups of strawberries are used?
Page 4 22. According to the graph below, about how many Country/Western albums were sold in 1999?
a. 45 million b. 50 million c. 55 million d. 60 million
23. The data display shows a golfer's strokes over par for several rounds. Describe the center and spread of the distribution. Justify your response based on the shape of the distribution.
Symmetric or Non-Symmetric?______Median: ______Interquartile range: ______
Page 5 Answer Key
1. d
2. c
3. 10
4. a
5. (0, 0)
6. d
7. c
8. ( 6, 2)
9. 3
10. a
11. 1.3
12. b
13. 240
14. a
15. 4
16. d
17. 190
18. 10
19. 3.25
20. 81%
21. 1 cup
22. b
23. non-symmetric; 11; 2
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