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Magoosh If Ed's annual salary is $360,000 what is Rick's annual salary?(1) The sum of Rick's annual salary and Jim's annual salary is equal to Ed's annual salary.(2) The sum of Rick's annual salary and Ed's annual salary is equal to twice Jim's annual salary.
Magoosh Bea owns how many more CDs than Al owns?(1) If Bea gives 9 of her CDs to Al, then Al will own twice as many CDs as Bea owns.(2) If Bea gives 1 CD to Al, and Al purchases 4 additional CDs, then Al and Bea will have an equal number of CDs.
Magoosh If triangle ABC is an isosceles triangle, what is ∠ABC ?(1) ∠CAB=45°(2) ∠BCA=90°
Magoosh A drawer contains 8 socks, and 2 socks are selected at random without replacement. What is the probability that both socks are black?(1) The probability is less than 0.2 that the first sock is black.(2) The probability is more than 0.8 that the first sock is white.
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If O is the center of the circle above, what fraction of the circular region is encompassed by an angle of x degrees?
OG18-数学分册 In the sequence $$ x_{0}, x_{1}, x_{2}, ..., x_{n}$$, each term from $$ x_{1}$$ to $$x_{k}$$ is 3 greater than the previous term, and each term from $$x_{k+1}$$ to $$x_{n}$$ is 3 less than the previous term, where n and k are positive integers and k < n. If $$ x_{0} = x_{n} = 0$$ and if $$ x_{k} = 15$$, what is the value of n?
PREP07 Test 2 After a fisherman sold $$\frac{1}{2}$$ of the fish he had caught and gave away $$\frac{1}{2}$$ of the remaining fish, he had 4 fish left. What was the total number of fish he had caught?
OG18-数学分册 If m is an integer greater than 1, is m an even integer?(1) 32 is a factor of m.(2) m is a factor of 32.
OG19-数学分册 How many members of a certain legislature voted against the measure to raise their salaries? (1) $$\frac{1}{4}$$of the members of the legislature did not vote on the measure. (2) If 5 additional members of the legislature had voted against the measure, then the fraction of members of the legislature voting against the measure would have been $$\frac{1}{3}$$.
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If is an integer, is ?

(1)

(2)

At the beginning of year 1, an investor puts p dollars into an investment whose value increases at a variable rate of $$x_n%$$per year, where n is an integer ranging from 1 to 3 indicating the year. If $$85\lt{x_n}\lt110$$ for all n between 1 and 3, inclusive, then at the end of 3 years, the value of the investment must be between
OG17 OG18 OG19 OG20 OG2022 Three dice, each of which has its 6 sides numbered 1 though 6, are tossed. The sum of the 3 numbers that are facing up is 12. Is at least 1 of these numbers 5?(1) None of the 3 numbers that are facing up is divisible by 3.(2) Of the numbers that are facing up, 2, but not all 3. are equal.
300难题 A box of light bulbs contains exactly 3 light bulbs that are defective. What is the probability that a sample of light bulbs picked at random from this box will contain at least 1 defective light bulb? 1.The light bulbs in the sample will be picked 1 at a time without replacement. 2.The sample will contain exactly 20 light bulbs.
$$\frac{1}{\frac{3}{4}-\frac{2}{3}}=$$
190415 $$a_1$$=4,$$a_n$$=2$$a_{n+1}$$,$$a_8$$=?
200301 Is 5 a factor of n?
(1)the remainder is 1 when n is divided by 4
(2)the remainder is 4 when n is divided by 7
191222 730高分节-数学测试 A, b, and c are three positive integers. a≤b≤c, can 2a+2b+2c be divided by 10?
Condition 1: c=a+1
Condition 2: b=c
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A certain company buys products and sells percent of them for dollars each and the rest for dollars each. Which of the following represents the total revenue on the sale of the products?
OG12 OG15 OG16 OG17 OG18 If Pat saved $600 of his earnings last month, how much did Pat earn last month?(1)Pat spent $$\frac{1}{2}$$ of his earnings last month for living expenses and saved $$\frac{1}{3}$$ of the remainder.(2)Of his earnings last month, Pat paid twice as much in taxes as he saved.
181215 $$0.1^{n+1}$$ ≤ 0.00625 ≤ $$0.1^{n}$$.n=?