New SAT Math (Calculator) Practice Test 9
Bộ sưu tập: SAT Practice Test
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The score on a trivia game is obtained by subtracting the number of incorrect answers from twice the number of correct answers. If a player answered 40 questions and obtained a score of 50, how many questions did the player answer correctly?
In 1854, during the California gold rush, each ounce of gold was worth $20, and the largest known mass of gold found in California was worth $62,400 in that year. What was the weight, in pounds, of this mass of gold? (16 ounces = 1 pound)
The manager of an online news service received the report above on the number of subscriptions sold by the service. The manager estimated that the percent increase from 2012 to 2013 would be double the percent increase from 2013 to 2014. How many subscriptions did the manager expect would be sold in 2014?
6,020
6,027
6,440
6,468
A circle in the xy‑plane has equation (x + 3)2 + (y – 1)2 =25 Which of the following points does NOT lie in the interior of the circle?
(−7, 3)
(−3, 1)
(0, 0)
(3, 2)
In the xy‑plane above, a point (not shown) with coordinates (s, t) lies on the graph of the linear function f. If s and t are positive integers, what is the ratio of t to s ?
1 to 3
1 to 2
2 to 1
3 to 1
The world’s population has grown at an average rate of 1.9 percent per year since 1945. There were approximately 4 billion people in the world in 1975. Which of the following functions represents the world’s population P, in billions of people, t years since 1975 ? (1 billion = 1,000,000,000)
P(t) = 4(1.019)t
P(t) = 4(1.9)t
P(t) = 1.19 + 4
P(t) = 1.019 + 4
If the 180 food calories in a granola bar come entirely from p grams of protein, f grams of fat, and c grams of carbohydrate, which of the following expresses f in terms of p and c ?
f = 20 + 4⁄9(p + c)
f = 20 - 4⁄9(p + c)
f = 20 - 4⁄9(p - c)
f = 20 + 9⁄4(p + c)
refer to the following information.
The table above gives the typical amounts of energy per gram, expressed in both food calories and kilojoules, of the three macronutrients in food.
If x food calories is equivalent to k kilojoules, of the following, which best represents the relationship between x and k ?
k = 0.24x
k = 4.2x
x = 4.2k
xk = 4.2
h(t) = −16t2 + 10t + 72
The function above models the height h, in feet, of an object above ground t seconds after being launched straight up in the air. What does the number 72 represent in the function?
The initial height, in feet, of the object
The maximum height, in feet, of the object
The initial speed, in feet per second, of the object
The maximum speed, in feet per second, of the object
6 − 9 > 12 x y
Which of the following inequalities is equivalent to the inequality above?
x − y > 2
2x − 3y > 4
3x − 2y > 4
3y − 2x > 2
A website-hosting service charges businesses a onetime setup fee of $350 plus d dollars for each month. If a business owner paid $1,010 for the first 12 months, including the setup fee, what is the value of d ?
25
35
45
55
Snow fell and then stopped for a time. When the snow began to fall again, it fell at a faster rate than it had initially. Assuming that none of the snow melted during the time indicated, which of the following graphs could model the total accumulation of snow versus time?
The graph above shows the positions of Paul and Mark during a race. Paul and Mark each ran at a constant rate, and Mark was given a head start to shorten the distance he needed to run. Paul finished the race in 6 seconds, and Mark finished the race in 10 seconds. According to the graph, Mark was given a head start of how many yards?
3
12
18
24
Which expression is equivalent to (2x2 – 4) – (-3x2 + 2x -7)?
5x2 − 2x + 3
5x2 + 2x − 3
−x2 − 2x − 11
−x2 + 2x − 11
refer to the following information.
The same 20 contestants, on each of 3 days, answered 5 questions in order to win a prize. Each contestant received 1 point for each correct answer. The number of contestants receiving a given score on each day is shown in the table above.
No contestant received the same score on two different days. If a contestant is selected at random, what is the probability that the selected contestant received a score of 5 on Day 2 or Day 3, given that the contestant received a score of 5 on one of the three days?
refer to the following information.
The same 20 contestants, on each of 3 days, answered 5 questions in order to win a prize. Each contestant received 1 point for each correct answer. The number of contestants receiving a given score on each day is shown in the table above.
What was the mean score of the contestants on Day 1 ?
In the figure above, tan B = 3⁄4. If BC = 15 and DA = 4, what is the length of ?
Point C is the center of the circle above. What fraction of the area of the circle is the area of the shaded region?
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