Maths-
SAT
Easy
Question
Questions 33 and 34 refer to the following information
The results of an international survey of contact lens fittings during a given time period are summarized in the table and bar graph above. The table shows the number of total fittings and the mean age, in years, of the patients who were fitted for contact lenses during the time period. The total fittings consisted of new contact lens fittings and re fittings. The bar graph shows the percent of the patients who received new fittings and the percent who received re fittings.
What is the range, in years, of the mean ages of the patients surveyed who had contact Lens fittings in the countries shown?
- 8.0
- 8.4
- 9.7
- 10.3
The correct answer is: 9.7
The range of mean ages = highest value – least value
= 36.3 – 26.6 = 9.7
Related Questions to study
Maths-
Questions 31 and 32 refer to the following information
The length C(t), in inches, of a channel catfish in an Iowa river t years after the first year of life can be approximated by the linear function C. Some values of C(t) are given in the table above.
F(t) = 3t + 4
The length F(t), in inches, of a flathead catfish in the same Iowa river t years after the first year of life can be approximated by the linear function F, defined by the equation above.
Which of the following equations could define C as a function of t?
Questions 31 and 32 refer to the following information
The length C(t), in inches, of a channel catfish in an Iowa river t years after the first year of life can be approximated by the linear function C. Some values of C(t) are given in the table above.
F(t) = 3t + 4
The length F(t), in inches, of a flathead catfish in the same Iowa river t years after the first year of life can be approximated by the linear function F, defined by the equation above.
Which of the following equations could define C as a function of t?
Maths-SAT
Maths-
Questions 31 and 32 refer to the following information
The length C(t), in inches, of a channel catfish in an Iowa river t years after the first year of life can be approximated by the linear function C. Some values of C(t) are given in the table above.
F(t) = 3t + 4
The length F(t), in inches, of a flathead catfish in the same Iowa river t years after the first year of life can be approximated by the linear function F, defined by the equation above.
According to the model, which of the following is closest to the expected age, to the nearest whole year, of a flathead catfish that is 31 inches long?
Questions 31 and 32 refer to the following information
The length C(t), in inches, of a channel catfish in an Iowa river t years after the first year of life can be approximated by the linear function C. Some values of C(t) are given in the table above.
F(t) = 3t + 4
The length F(t), in inches, of a flathead catfish in the same Iowa river t years after the first year of life can be approximated by the linear function F, defined by the equation above.
According to the model, which of the following is closest to the expected age, to the nearest whole year, of a flathead catfish that is 31 inches long?
Maths-SAT
Maths-
The function f is defined above. Which of the following is NOT an x-intercept of the graph of the function in the x y-plane?
The function f is defined above. Which of the following is NOT an x-intercept of the graph of the function in the x y-plane?
Maths-SAT
Maths-
The graph of y=f(x) is a line in the xy-plane that passes through the point (0, 2) and has a slope of 5. Which of the following equations could define the function f ?
The graph of y=f(x) is a line in the xy-plane that passes through the point (0, 2) and has a slope of 5. Which of the following equations could define the function f ?
Maths-SAT
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If 
, what is the value of x?
If , what is the value of x?
Maths-SAT
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In the figure, three lines intersect at point P. If x=65 and y=75,what is the value of z?
In the figure, three lines intersect at point P. If x=65 and y=75,what is the value of z?
Maths-SAT
Maths-
The function. h is defined above, where a, b, and c are integer constants. If the zeros of the function are -5, 6, and 7, what is the value of c?
The function. h is defined above, where a, b, and c are integer constants. If the zeros of the function are -5, 6, and 7, what is the value of c?
Maths-SAT
Maths-
If t > 0 and (3t)2 - 5(3t) - 14 = 0,what is the value of t ?
If t > 0 and (3t)2 - 5(3t) - 14 = 0,what is the value of t ?
Maths-SAT
Maths-
2x+3y=31
3x-y=30
If (x , y) is the solution to the system of equations above, what is the value of 100x+40y?
2x+3y=31
3x-y=30
If (x , y) is the solution to the system of equations above, what is the value of 100x+40y?
Maths-SAT
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What is the solution to the equation above?
What is the solution to the equation above?
Maths-SAT
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x + x = 9
What value of x satisfies the equation given?
x + x = 9
What value of x satisfies the equation given?
Maths-SAT
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Which of the following is equivalent to 
, where x>0?
Which of the following is equivalent to , where x>0?
Maths-SAT
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Triangle FGH is inscribed in the circle above. If arc 
is congruent to arc 
, and the measure of 
is 30°, what is the measure of 
?
Triangle FGH is inscribed in the circle above. If arc is congruent to arc , and the measure of is 30°, what is the measure of ?
Maths-SAT
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Which of the following could be an equation for the graph shown in the x y-plane above?
Which of the following could be an equation for the graph shown in the x y-plane above?
Maths-SAT
Maths-
Which of the following could be an equation for the graph shown in the x y-plane above?
Which of the following could be an equation for the graph shown in the x y-plane above?
Maths-SAT
