Name: 
 

Pre-Algebra Chapter 7 Study Guide


Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 
 
Solve the equation.
 

 1. 
–6 + 3x = –9
a.
–1
b.
–6
c.
–5
d.
–3
 

 2. 
–3x + 6 = –9
a.
–3
b.
5
c.
3
d.
1
 

 3. 
prealgebrachapter7s_files/i0050000.jpg
a.
4
b.
–20
c.
–1
d.
–4
 

 4. 
prealgebrachapter7s_files/i0060000.jpg
a.
–10
b.
36
c.
10
d.
44
 

 5. 
prealgebrachapter7s_files/i0070000.jpg
a.
–28
b.
–42
c.
–72
d.
–84
 

 6. 
prealgebrachapter7s_files/i0080000.jpgm – 7 = 5
a.
–4
b.
–15
c.
–36
d.
6
 

 7. 
prealgebrachapter7s_files/i0090000.jpg
a.
20
b.
9
c.
16
d.
–12
 

 8. 
prealgebrachapter7s_files/i0100000.jpgy + 9 = prealgebrachapter7s_files/i0100001.jpg
a.
–34
b.
2
c.
9
d.
38
 

 9. 
prealgebrachapter7s_files/i0110000.jpg
a.
prealgebrachapter7s_files/i0110001.jpg
b.
prealgebrachapter7s_files/i0110002.jpg
c.
9
d.
3prealgebrachapter7s_files/i0110003.jpg
 

 10. 
12 + 0.35x = 20.05
a.
91.5
b.
57.3
c.
2.8175
d.
23
 

 11. 
prealgebrachapter7s_files/i0130000.jpg
a.
14
b.
7
c.
2
d.
21
 

 12. 
prealgebrachapter7s_files/i0140000.jpg
a.
1
b.
3
c.
–3
d.
–1
 

 13. 
Uma wants to buy a video game system for $270. She has $60 and is saving $30 each week. Solve the equation 30w + 60 = 270 to find how many weeks w it will take Uma to save enough to buy the system.
a.
6 weeks
b.
7 weeks
c.
9 weeks
d.
8 weeks
 

 14. 
Miranda opened a checking account with $560 from her summer job. She withdrew the same amount each week for 13 weeks. Her balance was then $365. Solve the equation prealgebrachapter7s_files/i0160000.jpg to find how much money m she withdrew each week.
a.
$15
b.
$71
c.
$39
d.
$28
 

 15. 
Work-Out Corner has 5 more than 3 times as many exercise bicycles as The Gym. Together they have 21 bicycles. Solve the equation prealgebrachapter7s_files/i0170000.jpg to find the number of bicycles at Work-Out Corner.
a.
4 bicycles
b.
17 bicycles
c.
7 bicycles
d.
25 bicycles
 

 16. 
Twenty-five members of the eighth grade class at Park Center Middle School are going to a museum and then to lunch. Each student must pay an entrance fee to the museum and $7.25 for lunch. The total cost for the trip is $443.75. What is the entrance fee for one student?
a.
$10.50
b.
$17.46
c.
$17.75
d.
$61.21
 

 17. 
Paul rented a car for $129 plus $0.25 per mile. The total bill at the end of his trip was $216.50. Use the equation 129 + 0.25x = 216.50 to find the number of miles he drove.
a.
1,382 miles