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Exam Review 2
0308
Name___________________________________
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Decide if the given number is a solution to the given equation.
1) 9x = 45; 8
A) Yes
B) No
2)
1)
x
= 2; 10
5
2)
A) Yes
B) No
Solve the equation using the addition principle.
3) x + 2 = 6
A) -4
B) 4
4) 19 = -16 + x
A) -3
5) x +
B) 35
C) -8
D) 8
C) -35
D) 3
3)
4)
3
4
=
10 5
A)
7
10
5)
B)
1
2
C) 5
D)
11
10
Solve using the multiplication principle.
16
16
x=6)
7
27
A) -
21
4
B) -
6)
4
21
C) -
7
3
7) -30.6 = 5.1z
A) -24.6
Solve.
9) -3n - 9 = 12
A) -7
10)
7
27
C) -6
1
D) 6
B) -35
C) -6
16
D) 5
B) 22
C) -18
D) 7
B) -25.5
8) 5x + 7 = -23
A) - 5
D) -
1
1
a - = -6
2
2
A) 13
7)
8)
9)
10)
B) -11
C) -13
1
D) 11
11) -7b + 1 + 5b = -3b + 6
A) -1
12) 6x + 9 = 2x + 33
21
A)
4
B) -6
C) 6
D) 5
12)
B) 6
C) 8
D) 3
Solve. Clear fractions first.
9
1
1 7
13) x + x = 4x + + x
8
8
4 8
A) -
14)
1
29
13)
B)
2
35
C) -
2
29
D)
1
29
1
6 1
8
r+ = r+
5
5 7
7
A) -1
Solve. Clear decimals first.
15) 3.8t + 22.8 = 11.4t + 68.4
A) -24
16) 1.6x + 1.2 = -6.8 + 3.2x
A) 5
14)
B) 1
C) 2
D) -2
B) -6
C) 6
D) 24
B) 3.0
C) 2.5
D) -10
Solve using the multiplication principle.
3
17) x = 15
4
A)
Solve.
57
4
B)
19) 2(x + 7) + 10 = 4(x + 5) + 12
A) 10
15)
16)
17)
45
4
C)
18) 4(6x - 9) = 3(12x - 8)
A) 1
11)
63
4
D) 20
18)
B) -1
1
C)
5
D) -5
B) 14
C) 6
D) -4
20) 4x - 5 + 7x - 9 = 6x + 5x + 14
A) All real numbers
C) No solution
B) 0
D) 14
21) 3(x + 6) - (3x + 18) = 0
A) 6
C) 0
B) No solution
D) All real numbers
2
19)
20)
21)
Solve using the multiplication principle.
22) 5b -25
A) {b b -5}
B) {b b 5}
23) -6n < -
C) {b b 5}
D) {b b -5}
1
4
23)
A) n n >
1
24
B) n n <
1
24
C) n n < -
Solve using the addition and multiplication principles.
24) 3 - 3y - 1 -4y - 7
A) {y y > -3}
B) {y y -9}
25) -5a + 7 > -6a - 5
A) {a a < 2}
1
24
C) {y y < -3}
B) {a a > -12}
C) {a a > 2}
Solve using the addition principle. Graph and write set-builder notation for the answer.
26) -8n + 2 > -9n + 11
A) {n n < 9}
B) {n n
13}
C) {n n > 9}
D) {n n
22)
13}
3
D) n n > -
1
24
D) {y y -9}
D) {a a < -12}
24)
25)
26)
27) a + 3 < 12
A) {a a
27)
9}
B) {a a > 9}
C) {a a < 9}
D) {a a
9}
Graph the inequality.
28) -3 x < 1
28)
A)
B)
C)
D)
4
29) x
1
29)
A)
B)
C)
D)
30) x > 3
30)
A)
B)
C)
D)
Determine whether the given number is a solution of the inequality.
31) x < 9, -13.11
A) No
B) Yes
32) x
11, 7.53
A) No
B) Yes
33) x
5, -1
A) No
B) Yes
31)
32)
33)
Solve the problem.
34) The sum of three consecutive even integers is 264. Find the integers.
A) 90, 92, 94
B) 86, 88, 90
C) 81, 82, 83
D) 88, 90, 92
Solve the problem. Round to the nearest hundredth, if necessary.
35) What is 10% of 300?
A) 300
B) 30
C) 3
D) 0.3
36) What is 32% of 1313?
A) 42.02
B) 42,016
C) 420.16
5
D) 4201.6
34)
35)
36)
37) 16 is 3% of what number?
A) 533.33
B) 53.33
C) 48
38) 40% of what number is 80?
A) 32
B) 20
Solve.
D) 200
C) 0.5%
D) 5.0%
B) 0%
C) 200%
D) 100%
B) r = a + b - s
a+b
C) r =
s
a
D) r = + b
s
41) a + b = s + r for r
A) r = s(a + b)
42) x =
w+y+z
for y
9
3V
h
41)
43)
B) B =
h
3V
C) B =
Evaluate the formula for the given values of the variables.
44) P = 2L + 2W; L = 9 in., W = 4 in.
A) P = 144 in.
B) P = 13 in.
V
3h
C) P = 72 in.
D) B =
B) d = 168 miles
C) d = 59 miles
6
3h
V
D) P = 26 in.
45) d = rt; r = 56 miles per hour, t = 3 hours
A) d = 336 miles
40)
B) y = x - w - z - 9
D) y = 9x - w - z
1
Bh for B
3
A) B =
39)
42)
A) y = 9x - 9w - 9z
C) y = 9x + w + z
43) V =
37)
38)
C) 2000
Solve the problem. Round to the nearest tenth of a percent.
39) What percent of 8 is 0.04?
A) 200.0%
B) 50.0%
40) What percent of 21 is 21?
A) 1%
D) 5333.3
D) d =
56
miles
3
44)
45)