ACT Math Practice Test 18
Đề thi nằm trong bộ sưu tập: Tuyển Tập Bộ Đề Thi Đại Học Hoa Kỳ (ACT) - Có Đáp Án Chi Tiết
Số câu hỏi: 20 câuSố mã đề: 1 đềThời gian: 1 giờ
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37 is what percent of 144, to the nearest percent?
26%
37%
44%
74%
107%
The sum of the real numbers a and b is 13. Their difference is 5. What is the value of ab?
5
8
18
36
65
The isosceles triangle below has one angle measure as shown. What is the measure of each of the other angles?
30°
45°
50°
65°
130°
Which of the following numbers is the least in value?
0.02 × 104
0.2 × 103
2.0 × 10−2
20.0 × 102
0.002 × 105
In the figure shown below, AD = 16, ED = 11, and AE is congruent to CD. What is the length of AB?\
5
5√2
6
11√2
25
4a3 × 5a8 = ?
9a5
9a11
9a24
20a11
20a24
What is the value of the expression 10(100x−10,000) + 100 when x = 250?
2,500
150,100
160,000
210,000
300,100
2x2 × 3x2y2 × 5x2y is equivalent to:
30x8y3
30x8y2
30x6y3
11x8y3
11x6y6
All CDs are equally priced. If 8 CDs cost $76.00, what is the cost of 1 CD?
$0.10
$2.05
$7.60
$9.50
$10.50
Which of the following lists all the positive factors of 32?
1, 32
2, 16
2, 4, 8, 16
2, 4, 8, 16, 32
1, 2, 4, 8, 16, 32
If 4(x − 2) + 5x = 3(x + 3) − 11, then x = ?
−3
−1
0
1
2
A clock tower casts a 150-foot shadow on level ground, as shown below. The angle of elevation from the tip of the shadow to the top of the tower is 40◦. To the nearest tenth of a foot, what is the height of the clock tower?
(Note: cos 40◦ = sin 50◦ ≈ 0.77
cos 50◦ = sin 40◦ ≈ 0.64
tan 50◦ ≈ 1.19
tan 40◦ ≈ 0.84)
194.8
178.5
150.0
126.0
115.5
If f (x) = −3x2 − 8, then f (−4) = ?
−56
−40
8
24
40
Which real number satisfies (2n)(8) = 163?
3
4
6
9
12
On the real number line, what is the midpoint of −3 and 11?
−5
0
4
7
14
Rana and Tom own a pizza shop, which offers 3 kinds of cheese, 4 kinds of meat toppings, and 5 kinds of vegetable toppings. Each type of pizza on the menu has a combination of exactly 3 ingredients: 1 cheese, 1 meat, and 1 vegetable. How many types of pizzas are possible?
12
24
36
50
60
A certain brand of cereal costs $3.25 per box before sales tax is added. When you buy 5 or more boxes of this cereal you receive 1 additional box for free. What is the average cost per box of cereal for 6 boxes before sales tax is added?
$2.17
$2.71
$2.80
$3.25
$3.79
For all n, (3n + 5)2 = ?
6n2 + 15n + 10
6n2 + 30n + 25
9n2 + 6n + 10
9n2 + 15n + 25
9n2 + 30n + 25
The Moondance Riding Academy held its annual horse show for 3 days. The total amount collected in entry fees for the 3 days was $1,450. The amount collected, in dollars, is shown for each of the 3 days in the bar graph below:
The mean amount collected per day during the 3-day period is what, to the nearest dollar?
$300
$483
$577
$1,450
$4,350
The Moondance Riding Academy held its annual horse show for 3 days. The total amount collected in entry fees for the 3 days was $1,450. The amount collected, in dollars, is shown for each of the 3 days in the bar graph below:
Approximately what percent of the money collected from entry fees over the 3 days was collected on Day 2?
29%
34%
38%
66%
90%