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OG18-数学分册 A certain population of bacteria doubles every 10 minutes. If the number of bacteria in the population initially was $${10}^4$$, what was the number in the population 1 hour later?
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For the first portion of her trip, Frederique traveled of the total distance in miles at an average speed of 40 miles per hour, such that . She traveled the remaining distance at an average speed of 60 miles per hour. In terms of , what was Frederique's average speed for the entire trip?
Magoosh If n is an integer greater than 50, then the expression $$(n^{2} – 2n)(n^{2} – 1)$$ MUST be divisible by which of the following?I. 8II. 12III. 18
Magoosh Set A: {1, 3, 4, 6, 9, 12, 15}If three numbers are randomly selected from set A without replacement, what is the probability that the sum of the three numbers is divisible by 3?
OG19-数学分册 The infinite sequence $$a_1$$, $$a_2$$, ... , $$a_n$$, ... is such that $$a_1 = 2$$, $$a_2 = -3$$, $$a_3 = 5$$, $$a_4 = -1$$, and $$a_n = a_{n-4}$$ for n > 4. What is the sum of the first 97 terms of the sequence?
OG19-数学分册 A certain right triangle has sides of length x, y, and z, where x < y < z. If the area of this triangular region is 1, which of the following indicates all of the possible values of y?
OG18-数学分册 A certain right triangle has sides of length x, y, and z, where x < y < z. If the area of this triangular region is 1, which of the following indicates all of the possible values of y ?
A motorcycle travels at a speed of x kilometers per p hours. How many meters will it travel in s seconds, in terms of s, p and x. ($${x}{p}{s}\neq{0}$$; 1 kilometer = 1000 meters)?
Manhattan Jennifer has 60 dollars more than Brian. If she were to give Brian 1/5 of her money, Brian would have 25% less than the amount that Jennifer would then have. How much money does Jennifer have?
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If the median of a series of C consecutive integers is M, and M is a member of the series, what is the smallest member of the series?
A retailer purchased eggs at $2.80 per dozen and sold the eggs at 3 eggs for $0.90. What was the retailers gross profit from purchasing and selling 5 dozen eggs? (1 dozen eggs= 12 eggs)
GWD The proposed budget includes more than $1 billion in cuts that will shrink the police department through attrition, have halted some ambulance shifts, and have suspended plastic and glass recycling.
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A college class consists of 24 computer science majors, 16 marketing majors, and 20 finance majors. If 2 different students are to be selected at random from this class, what is the probability that both students will be marketing majors?
OG19-数学分册 The sequence $$a_1$$, $$a_2$$, ... $$a_n$$, ... is such that $$a_n= 2a_{n-1} - x$$ for all positive integers $$ n\geq 2$$ and for a certain number x. If $$a_5 = 99$$ and $$a_3 = 27$$, what is the value of x?
OG12 OG15 OG16 OG17 GWD PREP08 Test 1 OG18 Retail sales rose 0.8 of 1 percent in August, intensifying expectations that personal spending in the July–September quarter more than doubled that of the 1.4 percent growth rate in personal spending for the previous quarter.
GWD Background information: This year, each film submitted to the Barbizon Film Festival was submitted in one of ten categories. For each category, there was a panel that decided which submitted films to accept.Fact 1: Within each category, the rate of acceptance for domestic films was the same as that for foreign films. Fact 2: The overall rate of acceptance of domestic films was significantly higher than that of foreign films.In light of the background information, which of the following, if true, can account for fact 1 and fact 2 both being true of the submissions to this year's Barbizon Film Festival?
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A collection of DVDs includes comedies, dramas, and action movies. If DVDs are to be selected at random and without replacement, what is the probability that both DVDs will be action movies?
If n is a positive integer greater than 1, then p(n) represents the product of all the prime numbers less than or equal to n. The second smallest prime factor of p(12) + 11 is
190124 The cuboid of 24*20*10 inch^3 is coated with a 1 inch plastic foam. How many cubic feet is the difference between the volume of the cuboid before and after coating the plastic foam?
GMAT、gmat题库、gmat模考、gmat考满分This is a bar graph of Facebook's revenue for each of the 5 listed years from 2007 to 2011.Select the drop down that most accurately fills in the blank.A) Facebook's revenue growth rate first slowed from the previous year's growth rate.B) Facebook would have to repeat its 2007 revenue performancetimes in order to exceed its sales in 2011.