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PREP07 Test 1
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If l and k are lines in the xy-plane, is the product of the slopes of l and k equal to -1 ?(1) Line l passes through the origin and the point (1, 2).(2) Line k has x-intercept 4 and y-intercept 2.
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Magoosh
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If the sum of three consecutive integers is K , then which of the following is a possible value of K?
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OG12
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(n-x)+(n-y)+(n-z)+(n-k)What is the value of the expression above?(1)The average (arithmetic mean) of x, y, z, and k is n.(2)x, y, z, and k are consecutive integers.
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(n-x) + (n-y) + (n-c) + (n-k)What is the value of the expression above?(1) The average (arithmetic mean) of x, y, c, and k is n.(2) x, y, c, and k are consecutive integers.
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What is the greatest common factor of the positive integers j and k?(1)k = j + 1(2)jk is divisible by 5.
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OG19-数学分册
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In the coordinate plane, line k passes through the origin and has slope 2. If points (3,y) and (x,4) are on line k, then $$x + y$$ =
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OG12 OG15 OG16 OG17 OG18 OG19 OG20 OG2022
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If p is the product of the integers from 1 to 30, inclusive, what is the greatest integer k for which $$3^k$$ is a factor of p?
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In the xy-coordinate system, if (a,b) and (a+3,b+k) are two points on the line defined by the equation x=3y- 7, then k =
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OG12 OG15
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A certain expressway has Exits J, K, L, and M, in that order. What is the road distance from Exit K to Exit L ?(1)The road distance from Exit J to Exit L is 21 kilometers.(2)The road distance from Exit K to Exit M is 26 kilometers.
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191031
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10n/7 = q+k/7, k and n are both positive integers less than 7, and q is an integer, What's
the maximum value of q?
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Magoosh
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In the xy-coordinate system, line k has y-intercept 12 and an x-intercept greater than zero. If the area of the triangular region enclosed by line k and the two axes is 30, what is the slope of line k?
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For any integer k greater than 1, the symbol $${k}^\ast$$ denotes the product of all the fractions of the form $$\frac1 t$$, where t is an integer between 1 and k, inclusive. What is the value of $$\frac{{5}^\ast} {{4}^\ast}$$?
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Ready4
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If  and  is  percent of  , what percent of is  ?
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In the xy-plane, if line k passes through the points (3,-4) and (a,b), where b=4a-16 and a≠3, what is the slope of k?
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300难题
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If N = $$\frac{K}{T+ \frac{x}{y}}$$ ,Where T= $$\frac{K}{5}$$ and X=5- T,which of the following expresses y in terms of N and T?
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OG12 OG15 OG16 OG17 OG18
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How many people are directors of both Company K and Company R ?(1)There were 17 directors present at a joint meeting of the directors of Company K and Company R, and no directors were absent.(2)Company K has 12 directors and Company R has 8 directors.
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Magoosh
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In the xy-coordinate system, a circle with radius $$\sqrt{30}$$ and center (2,1) intersects the x-axis at (k ,0). One possible value of k is
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For each positive integer n, the integer n* is defined by $$ n^* = {n}^{2}$$ + 1. What is the value of the positive integer k ?(1) When k is divided by 4, the remainder is 1.(2) $$18 \leq k^* \leq 36$$
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191222
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If the values of the slope and the y-intercept of line g are positive, and the values of the slope and the y-intercept of line k are positive, is the x-intercept of line g greater than the x-intercept of line k ?
(1)The slope of line g is greater than the slope of line k
(2)The y-intercept of line g is greater than the y-intercept of line k
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181215
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k,m,p are integers. Is km+p odd?
1: m+p is even.
2: k+p is odd.
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