题目列表

Which of the following is an equation of a line that does NOT contain any points in the xy-plane for which both coordinates are integers?
n is an integer.

Quantity A

$(-1)^{n}(-1)^{n+2}$

Quantity B

1

A restaurant has a total of 16 tables, each of which can seat a maximum of 4 people. If 50 people were sitting at the tables in the restaurant, with no tables empty, what is the greatest possible number of tables that could be occupied by just 1 person?
A set consists of all three-digit positive integers with the following properties. Each integer is of the form JKL, where J, K, and L are digits; all the digits are nonzero; and the two-digit integers JK and KL are each divisible by 9. HOW many integers are in the set?
$5^{a}$ is a factor of 1,500, and let b be the greatest integer such that $3^{b}$ is a factor of 33,333,333. Which of the following statements are true?

Indicate all such statements.
What is the units digit of ($4^{32}$ - $3^{32}$)?

(4, 6) is the center of the circle above.

Quantity B

6

P, Q, and T are three distinct points in a plane.

Quantity A

The number of lines in the plane that pass through points P, Q and T

Quantity B

1

In 1998, how many of the imported towels were not imported from China?
If the average (arithmetic mean) number of towels imported from China per month was the same for the last 3 months of 2000 as it was for the first 9 months of 2000, approximately how many million dozen towels were imported from China during the 12 months of 2000?
In 1999, the ratio of the number of towels imported from China to the total number of towels imported from countries other than China was closets to which of the following?
Dr. Bradley treated a different number of patients on each of the 5 working days last week, and the least number of patients treated on any of the days was 20. No patient was treated on more than one day.

Quantity A

The least possible total number of patients that Dr. Bradley treated on the 5 working days last week

Quantity B

110

k, m, and p are integers.

If k and m are negative integers, which of the following must be negative integers?

Indicate all such integers.
Today a certain machine is worth 20 percent less than it was worth a year ago, and it is worth x percent less than it was worth two years ago. A year ago the machine was worth 20 percent less than it was worth two years ago.

x

Quantity B

40

A pianist agreed to perform one concert at a fee $12\frac{1}{2}$ percent less than her usual fee and a second concert at a fee 20 percent greater than the first fee. The fee for the second concert was what percent greater than her usual fee?
It costs d dollars to buy t thumbtacks. At this rate, what is the cost of t+2,500 thumbtacks, in dollars?
One day in 1997 at a gas station in the United States near the border of Canada, gasoline was selling for \$1.20 per gallon (United States dollars). On that day, 1 United States dollar could be exchanged for 1.25 Canadian dollars. If gasoline was being sold at an equivalent rate at a gas station across the border in Canada, which of the following calculations gives an approximate price, in Canadian dollars, for a liter of gasoline at the Canadian gas station that day? (1 gallon is approximately 3.785 liters.)
Which of the following is the best estimate of $\frac{(16.8)(10^{3})}{(0.51)(10^{-11})}$?
If x is an integer, then what is the least possible value of $3^{x}$ + $3^{-x}$ ?
The operation a¤b is defined for all numbers a and b by a¤b=a+3b+6. If c¤c=c, what is the value of c?

25000 +道题目

134本备考书籍