A student reads a pages per day for d days and then reads b pages per day for 2d days. In terms of a, b, and d, how many pages did the student read?
(F) ad + 2b
(G) ad + 2bd
(H) 2ad + 2bd
(J) 2abd
(K) 2abd2
The width of a rectangular cardboard box is half its length and twice its height. If the box is 12 cm long, what is the volume of the box in cubic centimeters?
（A）72 （B） 216 （C） 252 （D） 1,296 （E） 1,728
Correct Answer: B
In a certain town in New Hampshire, there are 7,695 registered voters, 60% of whom are Democrats. How many of the town's registered voters are Democrats?
（A）513 （B） 2,565 （C） 3,078 （D） 4,617 （E） 7,695
Correct Answer: D
Which of the following could be the equation of a line that passes through the points (-2,-7) and (2,17) in the standard (x,y) coordinate plane?
(F) 3x - 2y = 8 (G) 6x - y = -5 (H) 5x - 2y = 7 (J) 9x - 2y = -16 (K) x + y = 6
Correct Answer: G
More ACT Math Exam Questions
- 1
In the qualifying rounds for a race, Rusty and Dale drive their cars around a 6,000-foot oval track. Rusty and Dale each drive 8 laps in the qualifying rounds in lanes of identical length.
Dale drives 6 laps in 90 minutes. At what average rate, in feet per hour, does Dale drive these 6 laps?
- 2A flight instructor charges $75 per lesson, plus an additional fee for the use of his plane. The charge for the use of his plane varies directly with the cube root of the time the plane is used. If a lesson plus 27 minutes of plane usage costs $120, what is the total amount charged for a lesson involving 64 minutes of plane usage?
- 3Josh pounded a stake into the ground. When he attached a leash to both the stake and his dog's collar, the dog could walk 12 feet from the stake in any direction. Using 3.14 for π, what is the approximate area of the lawn, in square feet, that the dog could roam while tied to the stake?
- 4
Each of the following values could represent a probability EXCEPT:
- 5
In the spring semester of her math class, Katie's test scores were 108, 81, 79, 99, 85, and 82. What was her average test score in the spring semester?