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PREP07 Test 2 If 0 < x < 1, which of the following inequalities must be true?Ⅰ. $$x^5 < x^3$$ Ⅱ.$$x^4+x^5 < x^3+x^2$$ Ⅲ. $$x^4-x^5 < x^2-x^3$$
OG12 If candy bars that regularly sell for $0.40 each are on sale at two for $0.75, what is the percent reduction in the price of two such candy bars purchased at the sale price?
300难题 Machines X and Y run at different constant rates, and machine X can complete a certain job in 9 hours. Machine X worked on the job alone for the first 3 hours and the two machines, working together, then completed the job in 4 more hours. How many hours would it have taken machine Y, working alone, to complete the entire job?
A rectangular yard (white area) is surrounded by a hedge (shaded region) with a length of 15 meters and a width of 12 meters, as shown in the figure above. The area of the yard is equal to the area of the hedge. If the ratio of the length of the hedge to the width of the hedge is the same as the ratio of the length of the yard to the width of the yard, what is the width, in meters, of the yard?GMAT、gmat题库、gmat模考、gmat考满分
The sequence $${a}_{1}$$, $${a}_{2}$$, ..., $${a}_{n}$$, ... is such that $${a}_{n}=4a_{n-1}-{3}$$ for all integers $$n > 1$$. If $${a}_{3}={x}$$, then $${a}_{1}$$ =
which of the following must be equal to $$\mathbf{x}^{6}\mathbf{x}^{4}$$
PREP07 Test 1 If $${5}^{21}{4}^{11}={2}({10})^{n}$$ what is the value of n ?
190215 How many solutions to equation (x + 1) (x-2) + (x + 1) (x-4) = 0?
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S = {2, 3, 4, 6} T = {2, 3, 4, 6}

Two integers will be randomly selected from the sets above, one integer from set S and one integer from set T. What is the probability that the product of the two integers will equal 12?
191031 Three solid cheese balls with diameters of 2 inches, 4 inches, and 6 inches, respectively, were melted into a single cheese ball. What was the approximate diameter, in inches, of the new cheese ball? (The volume of a sphere is $$\frac{4}{3} \pi r^3$$, where r is the radius.)
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Joseph bought nails for each, hooks for each, and screws for each. Joseph bought a total of items and paid a total of . If Joseph bought twice as many nails as screws, how many hooks did he buy?
190113 When -1< x < -3/4, which option has the maximum value?
Magoosh A sum of money was distributed among Lyle, Bob and Chloe. First, Lyle received 4 dollars plus one-half of what remained. Next, Bob received 4 dollars plus one-third of what remained. Finally, Chloe received the remaining $32. How many dollars did Bob receive?
OG20 OG2022 Is x an integer? 1.$$x^{3} = 8$$ 2.$$x = \sqrt{4}$$
Magoosh Is x > 5?(1) x < 6(2) x < 4
Magoosh In Ophiuchus Corporation, 60% of the total revenue R is devoted to the advertising budget. Five-sixths of this advertising budget was spent on television advertising. Which of the following represents the dollar amount spent on television advertising?
Manhattan If 3x + 2y + 5z = 10 and 6x + 4y = 12, what is the value of z?
Manhattan What is 120% of$$\frac{ 1}{4} $$of 0.8?
200301 $$\frac { 4 } { \frac { \sqrt { 5 } - 1 } { \sqrt { 5 } + 1 } } = ?$$
In the xy-coordinate plane, line l passes through the point (-3, 0). Does line I pass through the point $$(0,\frac{3}{4} ) $$?1. The slope of line l is $$\frac{1}{4}$$2. Line l passes through the point (5, 2).