Question the-eq
The equation above relates the number of minutes, x, Maria spends running each day and the number of minutes, y, she spends biking each day. In the equation, what does the number 75 represent?
The number of minutes spent running each day
The number of minutes spent biking each day
The total number of minutes spent running and biking each day
The number of minutes spent biking for each minute spent running
The equation above relates the number of minutes, x , Maria spends running each day and
Easy-difficulty · SAT Math · Linear Equations in Two Variables — Intercepts and slope applications. Read the question above, select your answer, and check the full explanation below to understand exactly why the correct choice works.
Answer explanation
Choice C is correct. Maria spends x minutes running each day and y minutes biking each day. Therefore, 
represents the total number of minutes Maria spent running and biking each day. Because , it follows that 75 is the total number of minutes that Maria spent running and biking each day.
Choices A and B are incorrect. The number of minutes Maria spent running each day is represented by x and need not be 75. Similarly, the number of minutes that Maria spends biking each day is represented by y and need not be 75. The number of minutes Maria spends running each day and biking each day may vary; however, the total number of minutes she spends each day on these activities is constant and equal to 75. Choice D is incorrect. The number of minutes Maria spent biking for each minute spent running cannot be determined from the information provided.
More Linear Equations in Two Variables practice questions
- A line in the xy -plane has a slope of - 1 2 and
- The graph of y = f x - 11 is shown. The line slants
- f ( x ) = 4 x + b For the linear function f
- On a 210-mile trip, Cameron drove at an average speed of 60 miles per
- y = 576 2 x + 2 The graph of the given equation in
- Hiro and Sofia purchased shirts and pants from a store. The price of each
- The table gives the number of hours, h , of labor and a plumbers
- The line slants sharply up from left to right. The line passes through the
Browse all Heart of Algebra practice questions or return to the full SAT question bank.