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题目内容
The discounted price of a certain suit is 20 percent less than the original price of the suit. If the discounted price of the suit plus a sales tax of 5 percent of the discounted price equals $67.20, what was the original price of the suit?
In the rectangular coordinate system, the distance between the points (a, 2) and (b, 6) is 5. Quantity A \|a-b\| Quantity B 3
The table shows the means and ranges of two data sets, X and Y, each containing the same number of measurements. Quantity A The standard deviation of data set X Quantity B The standard deviation of data set Y
A bag contains 6 balls of which 2 are red and 4 are green. If 2 balls are to be chosen at random one after the other, without replacement. what is the probability that the second ball chosen will be red?
In the xy-plane shown, what is the maximum distance from an endpoint of line segment AB to a vertex of triangle DEF?
$$Y_1, Y_2, Y_3,...,Y_i,...$$ The sequence shown is defined by $$Y_1$$=5 and $$Y_{i+1}=\frac{1}{5}Y_i$$ for each positive integer. Quantity A $$Y_6$$ Quantity B $$(25^{5})Y_{16}$$
Today is Willy and Jake's birthday. Willy is 6 years older than Jake. On their birthday 4 years from today, Willy's age will be twice Jake's age. What will Jake's age be on his birthday 4 years from today? _____years
How many of the 900 positive 3-digit integers have a units digit of 2 and are the square of an integer?
A town library held a reading drive, in which 20 elementary school students were asked to record the number of books they read over the summer. Only whole numbers of books were recorded. The table above shows the results of the reading drive. The average (arithmetic mean) number of books read by the students was 2 books per student. Which of the following statements individually provide(s) sufficient additional information to conclude that only one student read only 5 books? Indicate all such statements.
A certain sign is in the shape of a regular octagon where the distance between any twoo opposite sides is 79 centimeters. Approximately what is the perimeter, in centimeters, of the sign?
$$n$$ is a positive integer. Quantity A The remainder when $$3^{4n+2}+5$$ is divided by 10 Quantity B 4
How many integers between 37 and 621 are squares of even integers?
0 < $$x$$ < 90 Quantity A $$y$$ Quantity B 5

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