The system of equations has how many solutions?
3x - 6y = 9
2y - x - 3 = 0
|
|
The average (arithmetic mean) of y numbers is x. If 30 is added to the set of numbers, then the average will be x - 5. What is the value of y in terms of x ?
|
|
If |x + 5| = 3 and $$\frac{|2y-1|}{3}=5$$, then |x + y| could equal each of the following EXCEPT
|
|
If f(x) =$$12-\frac{x^2}{2}$$ and f(2k) = 2k, what is one possible value for k?
|
|
If A, B, C and D are positive integers such that 4A = 9B, 17C = 11D, and 5C = 12A, then the arrangement of the four numbers from greatest to least is
|
|
If 3x < 2y < 0, which of the following must be the greatest?
|
|
If$$x^{2}+y^{2}=12$$, then $$\frac{x}{y}+\frac{y}{x}=$$
|
|
If xy = 7 and x - y = 5, then $$x^{2}?+y^{2}?=$$
|
|
$$If \frac{8-x}{x+1}=x,then x^{2}+2x-3=?$$
|
|
If A is the initial amount put into an account, R is the annual percentage of interest written as a decimal, and the interest compounds annually, then which of the following would be an expression, in terms of A and R, for the interest accrued in three years?
|
|
When positive integer x is divided by 11, the quotient is y and the remainder is 4. When 2x is divided by 8, the quotient is 3y and the remainder is 2. What is the value of 13y – x ?
|
|
$$If (\frac{1}{x}+x)^{2}=16$$,then $$\frac{1}{x^{2}}+x^{2}=$$
|
|
If 5x - 3y = 7 and 2y - 4x = 3, then 2x - 2y =
|
For all numbers a and b, the operation is defined by a ⊕ b = $$a^2 - ab$$. If xy ≠ 0, then which of the following can be equal to zero?
I. x ⊕ y
II. xy ⊕ y
III. x ⊕ (x + y)
|
|
$$If 8^{n+1}+8^{n}=36$$,, then n =
|
|
If f(x) = 5 - 2x and f(3k) = f(k + 1), then f(k) =
|
What is the sum of all possible solutions of the equation
$$|x+4|^{2}-10|x+4|=24$$
|
What is the sum of all possible solutions to the equation
$$\sqrt{2x^{2}-x-9}=x+1$$
|
|
If x + |x| + y = 7 and x + |y| - y = 6 , then x + y =
|
If$$6·|-\frac{k}{3}+4|>12$$, which of the following could be the value of k ?
Indicate all values.
|
