$$x+y=75$$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?
SAT · Math · previous-year question
- A.The number of minutes spent running each day
- B.The number of minutes spent biking each day
- C.The total number of minutes spent running and biking each day
- D.The number of minutes spent biking for each minute spent running
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