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College Algebra 8Th Edition by Ziegler, Byleen Barnett -Test Bank
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,Chapter 11. Solve.
6x + 6 = 2x – 10
A) –5 B) –4 C) –3 D) –2
Ans: B Section: 1.1
2. Solve.
4(x – 2) + 6x = 12
A) B) C) 1 D) 2
Ans: D Section: 1.1
3. Solve.
5(x + 9) + 7x = 8x + 1
Ans: –11
Section: 1.1
4. Solve.
20 + 10(x – 7) = 5(x + 4) + 5x
A) B) C) D) No solution
Ans: D Section: 1.1
5. Solve.
Ans: 22
Section: 1.1
6. Solve.
0.22(x – 0.65) – 0.8x = 0.2x – 4.55
Ans: 5.65
Section: 1.1
7. Solve.
Ans: –17
Section: 1.1
Page 22
, Chapter 1
8. Solve.
Ans:
Section: 1.1
9. Solve.
A) –5 B) 5 C) 2 D) No solution
Ans: D Section: 1.1
10. Solve.
A) 16 B) –16 C) 2 D) –2
Ans: B Section: 1.1
11. Solve for s.
Ans:
Section: 1.1
12. Solve for x.
A) B) C) D)
Ans: C Section: 1.1
13. Solve for x.
Ans: 4
Section: 1.1
Page 23
, Chapter 1
14. Find a number such that 60 more than one-half the number is twice the number.
Ans: 40
Section: 1.1
15. The length of a rectangle is 1 ft less than 3 times its width. If the perimeter of the
rectangle is 38 ft, find the dimensions of the rectangle.
Ans: 5 ft, 14 ft
Section: 1.1
16. The sale price of an item after a 25% discount is $105. What was the price before the
discount?
Ans: $140
Section: 1.1
17. How many liters of a solution which is 20% alcohol must a chemist mix with 50 liters of
a solution which is 50% alcohol to obtain a solution which is 25% alcohol?
Ans: 250 liters
Section: 1.1
18. How much pure antifreeze must be added to 12 gallons of 20% antifreeze to make a 40%
antifreeze solution?
A) 2 gallons B) 4 gallons C) 6 gallons D) 8 gallons
Ans: B Section: 1.1
19. One computer printer can print a company's mailing labels in 40 minutes. A second
printer would take 60 minutes to print the labels. How long would it take the two
printers, operating together, to print the labels?
Ans: 24 minutes
Section: 1.1
20. Ella's motorboat can travel 35 mi/h in still water. If the boat can travel 6 miles
downstream in the same time it takes to travel 4 miles upstream, what is the rate of the
river's current?
Ans: 7 mi/h
Section: 1.1
21. Rewrite in inequality notation and graph on a real number line.
(–7, 5]
Ans: –7 < x ≤ 5
( ]
–7 5
Section: 1.2
Page 24
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