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190207 Is the y-intercept of line l greater than 4? 1: The intercept of line l is equal to that of line y = 2x + 3. 2: The slope of line l is 5
OG19 OG20 OG2022 Ron is 4 inches taller than Amy ,and Barbara is 1 inch taller than Ron .If Barbara's height is 65 inches ,what is the median height ,in inches ,of these three people ?
Each signal that a certain ship can make is comprised of 3 different flags hanging vertically in a particular order. How many unique signals can be made by using 4 different flags?
OG12 OG15 Running at the same constant rate, 6 identical machines can produce a total of 270 bottles per minute. At this rate, how many bottles could 10 such machines produce In 4 minutes?
OG19-数学分册 A total of 20 amounts are entered on a spreadsheet that has 5 rows and 4 columns; each of the 20 positions in the spreadsheet contains one amount. The average (arithmetic mean) of the amounts in row i is $$R_i$$ ($$1 \leq i \leq 5$$). The average of the amounts in column j is $$C_j$$ ($$ 1\leq j \leq 4$$). What is the average of all 20 amounts on the spreadsheet? (1) $$R_1 + R_2 + R_3 + R_4 + R_5 = 550$$ (2) $$C_1 + C_2 +.C_3 + C_4 = 440$$
If$$ab\neq0$$ and$$a\neq3b$$ , what is the value of$${4a+6b}\over{a+3b}$$(1)a-3b = 6(2)$$2{{a}\over{a+3b}}=4$$
PREP07 Test 1 If x >$${y}^{2}$$ >$${z}^{4}$$, which of the following statements could be true?I. $$x >{y}>{z}$$II. $$z >{y}>{x}$$III.$$x>{z}>{y}$$
OG19-数学分册 There are 10 books on a shelf, of which 4 are paperbacks and 6 are hardbacks. How many possible selections of 5 books from the shelf contain at least one paperback and at least one hardback?
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A student's average (arithmetic mean) test score on 4 tests is 68. What must be the student's score on a 5th test for the student's average score on the 5 tests to be 70?
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If a represents a single digit and the four-digit integer a12a is divisible by 6, what is a?
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How many integer values of satisfy the inequality ?
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If is a positive integer, then is
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If is an integer greater than zero, then is
190321 $$y = 10^n +5^(x+2n)$$. n and x are positive integers. What`s the reminder of y when divided by 6?
1: x=3
2: n=4
What is the ratio of x to y?(1) The ratio of x to 2y is 4 to 3.(2) The ratio of 3x to y is 8 to 1.
if $$\frac{1}{2}+\frac{1}{3}+\frac{1}{4}=\frac{13}{x}$$,which of the following must be an integer?I. $$\frac{x}{8}$$II. $$\frac{x}{12}$$III. $$\frac{x}{24}$$
PREP07 Test 1 Is x to the right of -5 on the number line?(1)x is to the right of -7 on the number line.(2)x is between -4 and -3 on the number line.
PREP07 Test 2 The y-intercept of a line L is 4. If the slope of L is negative, which of the following could be the x-intercept of L ? I. -1 II. 0 III. 6
Magoosh What is the remainder when positive integer n is divided by 4?(1) When n is divided by 8, the remainder is 1.(2) When n is divided by 2, the remainder is 1.
If g(x) = x + 4 for all x and $$f(x)=\frac{2x^2-5}{x}$$ for all nonzero x, then f(x) = g(x) for which of the following values of x ?