Maths-
SAT
Easy
Question
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?
The correct answer is: 1220
2x + 3y = 31
3x – y = 30
20 (5x + 2y = 61)
100x + 40y = 1220
Related Questions to study
Maths-
What is the solution to the equation above?
What is the solution to the equation above?
Maths-SAT
Maths-
x + x = 9
What value of x satisfies the equation given?
x + x = 9
What value of x satisfies the equation given?
Maths-SAT
Maths-
Which of the following is equivalent to , where x>0?
Which of the following is equivalent to , where x>0?
Maths-SAT
Maths-
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
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
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
Maths-
An oceanographer uses the equation to model the speed s, in knots, of an ocean wave, where p represents the period of the wave, in seconds. Which of the following represents the period of the wave in terms of the speed of the wave?
An oceanographer uses the equation to model the speed s, in knots, of an ocean wave, where p represents the period of the wave, in seconds. Which of the following represents the period of the wave in terms of the speed of the wave?
Maths-SAT
Maths-
The function f is defined by f ( x) = x2, and the function g is defined by g ( x) = x2 + 3 . Which of the following translations of the graph of fin the xy-plane results in the graph of g?
The function f is defined by f ( x) = x2, and the function g is defined by g ( x) = x2 + 3 . Which of the following translations of the graph of fin the xy-plane results in the graph of g?
Maths-SAT
Maths-
Which of the following is equivalent to the sum of 3x4 +2x3 and 4x4 +7x3 ?
Which of the following is equivalent to the sum of 3x4 +2x3 and 4x4 +7x3 ?
Maths-SAT
Maths-
There were no jackrabbits in Australia before 1788 when 24 jackrabbits were introduced. By 1920 the population of jackrabbits had reached 10 billion. If the population had grown exponentially, this would correspond to a 16.2% increase, on average, in the population each year. Which of the following functions best models the population p(t) of jackrabbits t years after 1788?
There were no jackrabbits in Australia before 1788 when 24 jackrabbits were introduced. By 1920 the population of jackrabbits had reached 10 billion. If the population had grown exponentially, this would correspond to a 16.2% increase, on average, in the population each year. Which of the following functions best models the population p(t) of jackrabbits t years after 1788?
Maths-SAT
Maths-
Triangle ABC and triangle DEF are similar triangles, where are corresponding sides. If DE = 2AB and the perimeter of triangle ABC is 20, what is the perimeter of triangle DEF?
Triangle ABC and triangle DEF are similar triangles, where are corresponding sides. If DE = 2AB and the perimeter of triangle ABC is 20, what is the perimeter of triangle DEF?
Maths-SAT
Maths-
For the function f defined above, what is the value of f (-1)?
For the function f defined above, what is the value of f (-1)?
Maths-SAT
Maths-
What is the solution to -3 ( x - 5) = -2x + 4 ?
What is the solution to -3 ( x - 5) = -2x + 4 ?
Maths-SAT
Maths-
T = 1,000+18h
In the equation above, T represents Brittany's total take-home pay, in dollars, for her first week of work, where h represents the number of hours she worked that week and 1,000 represents a sign-on bonus. If Brittany's total take-home pay was $1,576, for how many hours was Brittany paid for her first week of work?
T = 1,000+18h
In the equation above, T represents Brittany's total take-home pay, in dollars, for her first week of work, where h represents the number of hours she worked that week and 1,000 represents a sign-on bonus. If Brittany's total take-home pay was $1,576, for how many hours was Brittany paid for her first week of work?
Maths-SAT
Maths-
The table shows several values of x and their corresponding values of f(x ). The function f is defined by f(x) = mx + b, where m and b are constants. What is the value of b ?
The table shows several values of x and their corresponding values of f(x ). The function f is defined by f(x) = mx + b, where m and b are constants. What is the value of b ?
Maths-SAT