A bus is traveling at a constant speed along a straight portion of road. The equation d = 30t gives the distance d, in feet from a road marker, that the bus will be t seconds after passing the marker. How many feet from the marker will the bus be 2 seconds after passing the marker?
Correct answer: C. 60
- A. 30
- B. 32
- C. 60
- D. 90
Explanation
Choice C is correct. It's given that t represents the number of seconds after the bus passes the marker. Substituting 2 for t in the given equation d = 30t yields d = 30 (2), or d =60. Therefore, the bus will be 60 feet from the marker 2 seconds after passing it.
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