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Data representations: medium


This chart presents a graph in the 't' 'v' plane. The horizontal axis is time in minutes and has tick marks from 0 to 5 in increments of 1. The vertical axis is volume of water in liters and has tick marks from 0 to 400 in increments of 40. The graph shows a line that starts at the point zero comma 360, then proceeds downward to the right to the point 5 comma zero.
Archimedes' tub is full of water. He opens the drain at the bottom so that water leaves the tub at a constant rate. The graph shows the volume of water, v, in liters, remaining in the tub after t minutes have passed. After how many minutes was the tub empty?
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4
  • a mixed number, like 1 3/4
  • an exact decimal, like 0.75
  • a multiple of pi, like 12 pi or 2/3 pi

How do I enter a student-produced response on the SAT?