SOLUTION: A pump is filling a tank at a constant rate. On day 3, the tank was 1/4 full. On day 8, the tank was 5/8 full. On what day will the tank be full?

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Question 1056231: A pump is filling a tank at a constant rate. On day 3, the tank was 1/4 full. On day 8, the tank was 5/8 full. On what day will the tank be full?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Use the two data points to find the rate.
R=%285%2F8-1%2F4%29%2F%288-3%29=%285%2F8-2%2F8%29%2F5=%283%2F8%29%2F5=3%2F40tanks%2Fday
So then, one tank would be filled in,
t=40%2F3days