题库 | 考满分，百万出国党的口碑之选。

序号	题目内容
61	In the xy-plane, what is the slope of the line with equation 3x + 7y = 9?
62	In the figure above if PQRS is a parallelogram,then y-x=
63	If 1 kilometer is approximately 0.60 mile, which of the following best approximates the number of kilometers in 2 miles?
64	A certain fruit stand sold apples for $0.70 each and bananas for $0.50 each. If a customer purchased both apples and bananas from the stand for a total of $6.30, what total number of apples and bananas did the customer purchase?
65	The average distance between the Sun and a certain planet is approximately 2.3 x $${10}^{14}$$ inches. Which of the following is closest to the average distance between the Sun and the planet, in kilometers? (1 kilometer is approximately 3.9 x $${10}^{4}$$ inches.)
66	At a certain school, the ratio of the number of second graders to the number of fourth graders is 8 to 5, and the ratio of the number of first graders to the number of second graders is 3 to 4. If the ratio of the number of third graders to the number of fourth graders is 3 to 2, what is the ratio of the number of first graders to the number of third graders?
67	If m is the average (arithmetic mean) of the first 10 positive multiples of 5 and if M is the median of the first 10 positive multiples of 5, what is the value of M-m?
68	A = {2, 3, 4, 5)B = {4, 5, 6, 7,8}Two integers will be randomly selected from the sets above, one integer from set A and one integer from set B. What is the probability that the sum of the two integers will equal 9?
69	In the coordinate plane, a circle has center (2, -3) and passes through the point (5, 0). What is the area of the circle?
70	At a certain instant in time, the number of cars, N, traveling on a portion of a certain highway can be estimated by the formulaN=$$20L\frac{d}{(600+s^2)}$$where L is the number of lanes in the same direction, d is the length of the portion of the highway, in feet, and s is the average speed of the cars, in miles per hour. Based on the formula, what is the estimated number of cars traveling on a $$\frac{1}{2}$$ mile portion of the highway if the highway has 2 lanes in the same direction and the average speed of the cars is 40 miles per hour? (5,280 feet = 1 mile)
71	Yesterday's closing prices of 2,420 different stocks listed on a certain stock exchange were all different from today's closing prices. The number of stocks that closed at a higher price today than yesterday was 20 percent greater than the number that closed at a lower price. How many of the stocks closed at a higher price today than yesterday?
72	If $${y}(\frac{3x-5}{2})={y}$$ and $$y\neq0$$,then x=
73	lf x+5>2 and x-3<7, the value of x must be between which of the following pairs of numbers?
74	A gym class can be divided into 8 teams with an equal number of players on each team or into 12 teams with an equal number of players on each team. What is the lowest possible number of students in the class?
75	In the figure above, triangle ABC is equilateral, and point P is equidistant from vertices A, B, and C. If triangle ABC is rotated clockwise about point P, what is the minimum number of degrees the triangle must be rotated so that point B will be in the position where point A is now?
76	At least $$\frac{2}{3}$$ of the 40 members of a committee must vote in favor of a resolution for it to pass. What is the greatest number of members who could vote against the resolution and still have it pass?
77	If n = 20! + 17,then n is divisible by which of the following?I.15II.17III.19
78	In the rectangular solid above, the three sides shown have areas 12, 15, and 20, respectively. What is the volume of the solid?
79	After driving to a riverfront parking lot, Bob plans to run south along the river, turn around, and return to the parking lot, running north along the same path. After running 3.25 miles south, he decides to run for only 50 minutes more. If Bob runs at a constant rate of 8 minutes per mile, how many miles farther south can he run and still be able to return to the parking lot in 50 minutes?
80	M is the sum of the reciprocals of the consecutive integers from 201 to 300, inclusive. Which of the following is true?

序号

题目内容

In the xy-plane, what is the slope of the line with equation 3x + 7y = 9?