Maths-
SAT
Easy
Question
The line graph shows the wind speed recorded every 2 hours in a town, where x is the number of hours after midnight and y is the wind speed, in miles per hour (mph). What is the greatest average change in wind speed, in miles per hour per hour, between two readings shown in the graph?
The correct answer is: 5
The changes of the wind speed is 
Greatest average change = 5.
Related Questions to study
maths-
Questions 35 and 36 refer to the following information.
As of 2016, there were 118 known elements. These elements can be described with 10 classifications as summarized in the given table.
An element is a nonmetal if it is classified as a halogen, noble gas, or other nonmetal. The ratio of all nonmetals to all elements is 10 to k. What is the value of k?
Questions 35 and 36 refer to the following information.
As of 2016, there were 118 known elements. These elements can be described with 10 classifications as summarized in the given table.
An element is a nonmetal if it is classified as a halogen, noble gas, or other nonmetal. The ratio of all nonmetals to all elements is 10 to k. What is the value of k?
maths-sat
maths-
A one-digit positive integer will be chosen at random. What is the probability that the chosen integer will be greater than 7 ? (Express your answer as a fraction or decimal, not as a percent.)
A one-digit positive integer will be chosen at random. What is the probability that the chosen integer will be greater than 7 ? (Express your answer as a fraction or decimal, not as a percent.)
maths-sat
maths-
Rectangle A has an area of 64 square meters. The length and width of rectangle B are 3 times the corresponding length and width of rectangle A. What is the area, in square meters, of rectangle B?
Rectangle A has an area of 64 square meters. The length and width of rectangle B are 3 times the corresponding length and width of rectangle A. What is the area, in square meters, of rectangle B?
maths-sat
maths-
(x + 3)2 + (y -7)2 = 100
In the xy-plane, the graph of the given equation is a circle. Which point (x, y) lies on the circle?
(x + 3)2 + (y -7)2 = 100
In the xy-plane, the graph of the given equation is a circle. Which point (x, y) lies on the circle?
maths-sat
maths-
Which equation is the most appropriate exponential model for the data shown in the scatterplot?
Which equation is the most appropriate exponential model for the data shown in the scatterplot?
maths-sat
maths-
A sample of strontium-90 will radioactively decay to half the original quantity in approximately 29 years. The function S above models the amount of strontium-90, in grams, that remains t years after a IO-gram sample starts to decay. Which of the following is the best interpretation of the number 0.5 in the function?
A sample of strontium-90 will radioactively decay to half the original quantity in approximately 29 years. The function S above models the amount of strontium-90, in grams, that remains t years after a IO-gram sample starts to decay. Which of the following is the best interpretation of the number 0.5 in the function?
maths-sat
maths-
The histogram shows the distribution of book prices, in dollars, for the 27 books for sale at a store.
The first bar represents books with prices of less than $5. The second bar represents books with prices of at least $5 but less than $10, and so on. In which interval will the median price of books for sale be included when the book that costs at least $35 but less than $40 is sold?
The histogram shows the distribution of book prices, in dollars, for the 27 books for sale at a store.
The first bar represents books with prices of less than $5. The second bar represents books with prices of at least $5 but less than $10, and so on. In which interval will the median price of books for sale be included when the book that costs at least $35 but less than $40 is sold?
maths-sat
maths-
The bar graph shows the frequency of each data value in a certain data set. What is the minimum data value in the data set?
The bar graph shows the frequency of each data value in a certain data set. What is the minimum data value in the data set?
maths-sat
maths-
A potter is selling vases. The function p gives the total profit p(x), in dollars, the potter will receive if the vases are sold at a price of x dollars each. The graph of y = p(x) is shown.
What equation represents the relationship between the price of one vase and the profit?
A potter is selling vases. The function p gives the total profit p(x), in dollars, the potter will receive if the vases are sold at a price of x dollars each. The graph of y = p(x) is shown.
What equation represents the relationship between the price of one vase and the profit?
maths-sat
maths-
In a tournament for 64 teams, each game is played between two teams. Each team plays one game in the first round. For all rounds, the winning team of each game advances to play a game in the next round, and the losing team is eliminated from the tournament. How many teams remain to play in the fourth round of the tournament?
In a tournament for 64 teams, each game is played between two teams. Each team plays one game in the first round. For all rounds, the winning team of each game advances to play a game in the next round, and the losing team is eliminated from the tournament. How many teams remain to play in the fourth round of the tournament?
maths-sat
maths-
The box plots above show the distributions of two data sets. Which of the following statements must be true?
The box plots above show the distributions of two data sets. Which of the following statements must be true?
maths-sat
maths-
Henri buys 2 boxes of blue pens and some boxes of black pens, Each box contains 10 pens, and Henri buys a total of 50 pens. The equation 10(x + 2) = 50 represents this situation. Which of the following is the best interpretation of the expression x + 2 in this context?
Henri buys 2 boxes of blue pens and some boxes of black pens, Each box contains 10 pens, and Henri buys a total of 50 pens. The equation 10(x + 2) = 50 represents this situation. Which of the following is the best interpretation of the expression x + 2 in this context?
maths-sat
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E = 18,000 - 2,000t
V = 18,000(0.85)t
The given equations are two different models that can be used to find the value, in dollars, of a particular car t years after it was purchased. Which of the following statements correctly compares the values of E and V for 0 < t < 9 ?
E = 18,000 - 2,000t
V = 18,000(0.85)t
The given equations are two different models that can be used to find the value, in dollars, of a particular car t years after it was purchased. Which of the following statements correctly compares the values of E and V for 0 < t < 9 ?
maths-sat
maths-
In the xy-plane, what is they-intercept of the line with equation y = -2x + 4 ?
In the xy-plane, what is they-intercept of the line with equation y = -2x + 4 ?
maths-sat
maths-
Costs of some steps to publish a manuscript can vary, as shown in the table.
Which of the following graphs could represent the relationship between
the number of manuscripts, x, and the cost, y, of acquiring ISBNs for the manuscripts?
Costs of some steps to publish a manuscript can vary, as shown in the table.
Which of the following graphs could represent the relationship between
the number of manuscripts, x, and the cost, y, of acquiring ISBNs for the manuscripts?
maths-sat
