#### 题目列表

If$x+2\frac{x+1}{x+3},then x^{2}+4·x-5=$
If$\frac{1}{x}=0.4, then \frac{1}{x+2}=$
If x and y are both positive and $\sqrt{x^{2}+y^{2}}=3·x-y$, then $\frac{x}{y}=$
If $x-5=\sqrt{2·x^{2}-18·x+37}$ then x could equal
If 0.25 + x = y and $\frac{y}{x}$ = 0.2, then y =
If 3*x*m + 2*y*m - 2*y*n - 3*x*n = 0 and$m \neq n$ , then what is the value of y in terms of x?
If a*k - b = c - d*k, then k =
If 4*x - 3*y = 13 and 5*x + 2*y = -1, then x =
Which of the following is a root of the equation $2*x^2 - 20*x = 48$?
If $\sqrt{2·x^{2}+2·x·y+13·y^{2}}=x+3·y$ , then x =
Which of the following inequalities is equivalent to 12 - 3*x < -18
If $\frac{6}{11}$ of k is $\frac{8}{41}$ , what is $\frac{3}{11}$ of k? _____/_____
If ${2+\frac{3}{n}\over3+\frac{2}{n}}={\frac{5}{4}}$, what is the value of n? _____/_____
If ∠CFD = 85° , then what is the value of x? Note: Figure not drawn to scale In the diagram, AE = 20, AD = 14, CD = 6 and EB = 17. What is the length of line segment BC?

Note: Figure not drawn to scale. What is the area of the circle? In terms of x and y, what is the area of the shaded region?

Note: Figure not drawn to scale. What is the value of y?

Note: Figure not drawn to scale What is the value of x? If AD = 3x, AE = 5x, EB = y and DC = 5y, what is the ratio of the area of triangle DEC to the area of rectangle ABCD ?

Note: Figure not drawn to scale 25000 +道题目

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