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GMAT、gmat题库、gmat模考、gmat考满分The graph shows the estimated number of users for 3 hyper-growth internet startups in 5 selected years, each launched in the same year. Companies X, Y and Z are all subsidiaries within Holding Company A. The number of users across all of Holding Company A's web properties was 1 billion in Year 1 and 2.8 billion in Year 9.From each drop-down menu, select the option that creates the most accurate statement based on the information provided.A) The increase in the estimated number of users in Company Z from Year 1 to 9 accounts for approximately% of the increase in the estimated number of users across all of Holding Company A's web properties.B) In Year 9, the estimated number of users cumulatively across Companies X, Y, and Z wasof the estimated users across all of Holding Company A's web properties.
Magoosh What is the sum of all possible solutions to the equation$$\sqrt{2x^{2}-x-9}=x+1$$ ?
Magoosh There are 13 hearts in a full deck of 52 cards. In a certain game, you pick a card from a standard deck of 52 cards. If the card is a heart, you win. If the card is not a heart, the person replaces the card to the deck, reshuffles, and draws again. The person keeps repeating that process until he picks a heart, and the point is to measure how many draws it took before the person picked a heart and, thereby, won. What is the probability that one will pick the first heart on the third draw or later?
Ready4

Both x and y are integers. If 250 = 1024x + y and 1 ≤ y ≤ 1024, how many possible values are there for y?
The operation $$O$$ is defined by the equation $$x O y$$ = $$\frac{x-y} {x+y}$$, where $${y}!=-{x}$$. If $$3 O y = 5 O 4$$, then y =
A circular mat with diameter 20 inches is placed on a square tabletop, each of whose sides is 24 inches long. Which of the following is closest to the fraction of the tabletop covered by the mat?
Ann, Carol, and Judy paid a total of $45 for their dinner at a restaurant. If Ann paid $$\frac2 5$$ of the total amount, Carol paid $17, and Judy paid the rest, what fraction of the total amount did Judy pay?
A box contains exactly 24 balls, of which 12 are red and 12 are blue. If two balls are to be picked from this box at random and without replacement, what is the probability that both balls will be red?
OG12 OG15 OG16 OG17 OG18 OG19 OG20 OG2022 In an electric circuit, two resistors with resistances x and y are connected in parallel. In this case, if r is the combined resistance of these two resistors, then the reciprocal of r is equal to the sum of the reciprocals of x and y. What is r in terms of x and y ?
OG12 OG15 OG16 OG17 At a loading dock, each worker on the night crew loaded $$\frac{3}{4}$$ as many boxes as each worker on the day crew. If the night crew has $$\frac{4}{5}$$ as many workers as the day crew, what fraction of all the boxes loaded by the two crews did the day crew load?
Over a period of 5 academic years from Fall 1999 through Spring 2004, the number of faculty at a certain college increased despite a decrease in student enrollment from 5,500 students in Fall 1999. In the given expressions, F and S represent the percent change in the number of faculty and students, respectively, over the 5 academic years, and R represents the number of students per faculty member in Fall 1999. The percent change in a quantity X is calculated using the formula $${\frac{X_{new}-X_o{ld}}{{x}_{o}{ld}}}(100)$$Select the expression that represents the number of faculty in Fall 1999, and select the expression that represents the number of students per faculty member in Spring 2004. Make only two selections, one in each column.
OG17 OG18 OG19 OG20 OG2022 The probability that event M will not occur is 0.8 and the probability that event R will not occur is 0.6. If events M and R cannot both occur, which of the following is the probability that either event M or event R will occur?
190302 The length of the three sides of a triangle is 6, x, 2x. What is the range of x?
GMAT、gmat题库、gmat模考、gmat考满分 In the figure shown, AC =2 and BD =DC =1. what is the measure of angle ABD?
190321 x=(x+y+z+w)/4 -1, y = (x+y+z+w)/3 - 3 , z=(x+y+z+w)/4 , w=16.x=?
190321 The product of all integers from 1 to n, inclusive, is a multiple of $$10^6$$. What is the minimum value of n?
190215 What is the value of n when the average of the five numbers 1, 3, 4, n, 10 is equal to the median?
Ready4

If a and b are two positive integers whose greatest common divisor is , what will be the remainder of , if ?
应用题 In a marketing survey, 60 people were asked to rank three flavors of ice cream, chocolate, vanilla, and strawberry, in order of their preference. All 60 people responded, and no two flavors were ranked equally by any of the people surveyed. If 3/5 of the people ranked vanila last, 1/10 of them ranked vanila before chocolate, and 1/3 of them ranked vanilla before strawberry, how many people ranked vanilla first?
If w, x, y, and z are integers such that 1 < w < x < y < z and wxyz = 462, then z =?