WorksheetsUnit 3 Summative Practice
Total questions: 20
Worksheet time: 2hrs 40mins
The pair of figures are similar. Find the missing side.
3.75
9.75
10
12
Brody drew a scale drawing of a campsite. He used the scale 1 inch : 3 feet. If the actual width of the tent is 6 feet, how wide is the tent in the drawing?
2 in
1 in
3 in
18 in
Desmond measured a city park and made a scale drawing. The scale he used was 1 centimeter : 9 meters. The actual width of the soccer field is 54 meters. How wide is the field in the drawing?
6 cm
486 cm
9 cm
54 cm
then 5% SALES TAX. How much will she pay? TAKE YOUR TIME!
Dinner is $23.77 and you leave a 10% tip. Find the total cost.
$ 2.38
$ 2.37
$ 26.15
$ 21.39
Amy deposits $200 in the bank for 5 years. She earns 5% interest. How much did she make in interest?
$10
$60
$50
$500
The cafeteria manager at a local middle school would like to survey students to get their opinion on the new lunch menu. Which of the following sampling methods would be unbiased?
Select one class at random, then survey each student in that class.
Obtain an alphabetical list of all students that attend the school, then survey every 10th
student.
Have each eighth grader complete a survey during homeroom.
Randomly survey 10 students in the cafeteria.
You want to estimate the number of students in a high school who ride the school bus. Which sample is best?
4 students in the hallway
All students in the marching band
50 seniors at random
100 students at random during lunch
Litzy collects data from a random sample of 7th graders. Out of 40 respondents, 7 attend afterschool programs. Of the 200 7th graders attending Litzy's school, how many would be expected to attend afterschool programs?
14 7th graders
28 7th graders
35 7th graders
42 7th graders
A town has 35,000 registered voters. A random sample of 500 voters finds that 125 are in favor of a new dog park. How many are likely to vote for the dog park?
25
125
2,625
8,750
A map uses a scale of 1 inch : 5 miles. If the distance between two towns is 20 miles, what is the distance on the map?
5 inches
20 inches
4 inches
10 inches
A survey of 600 people finds that 150 prefer tea over coffee. If the town has 12,000 people, how many are likely to prefer tea?
4,000
2,000
1,500
3,000
John invests $500 at a 4% annual interest rate for 3 years. How much interest will he earn?
$60
$50
$40
$30
A local library wants to know how many people prefer e-books over physical books. Which sampling method would provide the most unbiased results?
Survey every person who enters the library on a Monday.
Survey 20 people at random in the library's cafe.
Survey every 5th person on the library's membership list.
Survey all people who attend a book club meeting.
A company has 10,000 employees. A random sample of 200 employees finds that 40 prefer working remotely. How many employees are likely to prefer working remotely?
2,000
1,000
800
4,000
A restaurant bill is $45.60 and you leave a 15% tip. What is the total cost?
$52.44
$45.60
$53.00
$50.00
A blueprint uses a scale of 1 inch : 8 feet. If a room is 32 feet long in reality, how long is it on the blueprint?
32 inches
8 inches
16 inches
4 inches
A store offers a 25% discount on all items. If an item originally costs $80, what is the discounted price?
$55
$20
$75
$60
A survey of 500 people finds that 100 prefer online shopping. If the city has 50,000 people, how many are likely to prefer online shopping?
10,000
1,000
5,000
2,500
A blueprint uses a scale of 1 inch : 10 feet. If a wall is 40 feet long in reality, how long is it on the blueprint?
4 inches
8 inches
10 inches
5 inches
