2017年11月SAT北美真题大放送，备考SAT的小伙伴们快到碗里来!
1
In the at xy -plane，what is the solution (x，y)to the system of equations graphed above?
A) (0,1)
B) (0,2)
C) (1,1)
D) (2,0)
2
3
Ivan opened a checking account with an initial deposit of x dollars, and then he deposited$55 into the account each week for 13 weeks. At the end of the 13 weeks, he had deposited$800 into the account. If no other deposits or withdrawals were made, what is the value of x ?
A) 55
B) 85
C) 140
D) 800
4
y-7x=13
8x=3y
Which ordered pair (x,y) is the solution to the systemof equations above?
A) (-8,-3)
B) (-3,-8)
C) (1,3/8)
D(8/3,1)
5
A certain cake recipe calls for 3 cups of flour to make 12 servings. If 40 servings of the cake are being made, how many cups of flour will be needed for this recipe?
A) 0.9
B) 4
C) 10
D) 31
6
7
Personal Finance Seminar Enrollment
The number of students enrolled in a personal finance seminar for each of 10 years is shown in the scatterplot above. A line of best fit is also drawn. For how many of these 10 years was enrollment in the seminar less than predicted by this line of best fit?
A) 2
B) 4
C) 6
D) 8
8
The 25 brightest stars in the night sky were classified by spectral type and luminosity class, as shown in the table below.
What percentage of the stars represented in the table have a luminosity class of main sequence?
A) 13%
B) 36%
C) 52%
D) 67%
9
Questions l0 and 11 refer to the following information.
To determine whether a certain author wrote a famous book, a researcher studied the works known to have been written by the author. The researcher collected a total of 5,000 distinct words of length 3,4,5,6, or 7 letters from these works, and the table
below summarizes information about these 5,000 words.
10
The number of distinct 7-letter words collected is approximately how many times as great as the number of distinct 3-letter words collected?
A) 0.2
B) 0.5
C) 3
D) 5
11
To the nearest percent, what percent of the 5,000 distinct words the researcher collected are 6 or 7 letters long?
A) 27%
B) 32%
C) 41%
D) 59%
12
A recipe that serves 4 people calls for a apples and m mangoes. According to this recipe, what is the total number of apples and mangoes needed to serve 20 people?
A) 4a+4m
B) 5a+5m
C) 20a+20m
D) 24a+24m
13
United States Consumption of Certain Types of Renewable Energy since 2003
Questions 14 and 15 refer to the following information.
In 2014, quarterly sales for full-service restaurants and shoe stores in the United States each increased by a constant rate. For the first quarter of 2014, full-service restaurants had total sales of $63,083(in millions), and each quarter their sales increased approximately $1,597 (in millions). For the first quarter of 2014, shoe stores had total sales of $8,143 (in millions)，and each quarter their sales increased approximately $32 (in millions).
15
If the same linear trend for shoe store sales continues, how many quarters after the first quarter of 2014 will the total quarterly sales (in millions) for shoe stores in the United States first exceed$8,500?
A) 11
B) 12
C) 265
D) 266
17
A data set consists of the values 250,320,430,452, 600, and 17,167.If the outlier is removed, what will happen to the value of the mean of the data set?
A)The mean will remain the same.
B) The mean will decrease.
C) The mean will increase.
D) There is not enough information to determine
how the mean will change.
Questions 18 and 19 refer to the following information.
The scatterplot below give the latitude L, in degree north, and annual mean temperature T, in degree Fahrenheit (°F), for 19 different location in Alaska. A line of best fit the data is also shown.
18
Which of the following is the best interpretation of the number-1.71 in the equation of the line of best fit?
A) Each 1°F increase in annual mean temperaturecorresponds to a predicted 1.71-degree increasein north latitude.
B) Each 1°F increase in annual mean temperaturecorresponds to a predicted 1.71-degree decreasein north latitude.
C) Each 1-degree increase in north latitudecorresponds to a predicted 1.71°F increase inannual mean temperature.
D) Each 1-degree increase in north latitudecorresponds to a predicted 1.71°F decrease inannual mean temperature.
19
Saint Paul Island, Alaska, is one of the 19 locations shown in the scatterplot. It has a latitude of 57.2 degrees north and an annual mean temperature of 35°F.How many locations shown in the scatterplot have both a greater north latitude and a greater annual mean temperature, in °F, than Saint Paul Island?
A) Two
B) Four
C) Six
D) Nine
20
To determine if gender and number of siblings are related to whether 9-year-old children like to read, Sarah selected a random sample of 40 boys with fewer than 3 siblings and a random sample of 30 girls with 3 or more siblings tram the 9-year-old children
in her city. For each child, she recorded the child’s age, gender, and whether the child reported liking to read. Why is it inappropriate for Sarah to draw a conclusion from her study?
A) The two samples are not of equal size.
B) The two samples should have been chosen fromdifferent cities.
C) There is no upper hound on the number ofsiblings of the 30 girls.
D) Sarah will not be able to tell whether adifference in liking to read is related to thedifference in gender or to the difference in number of siblings.
21
A pump can be set to extract water from a pool at one of three different rates:1 gallon per minute. 4 gallons per minute, or 8 gallons per minute. The graph below shows the amount of water left in the pool from the time the pump was turned on. How many minutes after being turned on was the pump switched to a rate of 8 gallons per minute?
A) 3
B) 5
C) 8
D) 29
22
he price of an investment over a period of 5 years is shown in the graph below.
During which of the following time periods did the price of the investment have the largest increase?
A) Jan. l, 2011 , to Jan.1, 2012
B) Jan. l, 2011 , to Jan.1, 2013
C) Jan. l, 2012 , to Jan.1, 2014
D) Jan. l, 2013 , to Jan.1, 2014
29
答案： 1-10 CBBBC DBCAD
11-20 DBCAB DBDCD
21-30 BCAAB DAAAD
2017年11月北美