题目列表

The sum of x and y is at least 2 but no more than 5. If the total of twice x and three times y is non-negative and no more than 40, which of the following expresses all possible values of y ?
$(\frac{1}{x})+(\frac{1}{y})=6,-\frac{1}{3}=-2(\frac{zy}{z+y})$

z

Quantity B

x

a, b, and c are integers such that ab + c = 7, ac + b = 5, and a + b + c = 6. What is the value of abc ?
If –4 ≤ a ≤ 9, and –3 ≤ b ≤ 2, then what is the greatest possible value of a – b ?_____
If m – n > 3, then which of the following must be true?Indicate all possible values.
All of the students in a certain class are either 7 or 8 years old. 80 percent of the students are boys and 25 percent of the girls are 8 years old. If there are an equal number of 7-year-olds and 8-year-olds, what percent of the students in the class are boys who are 7 years old?_____
If –12 < x < –2 and 3 < y < 6, which of the following could equal xy ?Indicate all possible values.
If $x^–2$ – 2 = –1.96, $y^(\frac{1}{3})$ – 5 = –2, and xy > 0, then what is the value of xy ?_____
3 and 5 are factors of x.

Quantity A

The remainder when x is divided by 10

Quantity B

6

$\frac{5\cdot5}{5+5}+\frac{5\cdot5}{5+5}=$
|1 – 5| = |5 – m|

m

Quantity B

4

x, y, and z are consecutive even integers.

xy

Quantity B

yz

If bc ≠ 0, and 3b + 2c = 18, then which of the following is NOT a possible value of c?
At the local grocery store, apples normally cost 40 cents each. During a recent sale, the price was reduced to 3 apples for a dollar. How much money would be saved by purchasing 30 apples at the sale price?
y < 0

2y

Quantity B

20y

Which of the following could be the difference between two positive integers whose product is 28?
Set X consists of the positive multiples of 5, and set Y consists of the odd prime numbers less than 20. If set Z consists of every distinct integer less than 100 that is the product of one element from set X and one element from set Y, then set Z consists of how many elements?
$\frac{u}{v}(\frac{x}{y+z})$
m > 0, n > 0

Quantity A

$\frac{m}{mn}$

Quantity B

$\frac{n}{mn}$

Which of the following is the best approximation of $\sqrt\frac{(98.763)(0.49)^2}{0.252}$

25000 +道题目

66本备考书籍