SOLUTION: Under the onslaught of the College Algebra second period class, the pile of homework decreased exponentially. They decreased from 1000 to 700 in only 30 minutes. How long would it

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Question 1088800: Under the onslaught of the College Algebra second period class, the pile of homework decreased exponentially. They decreased from 1000 to 700 in only 30 minutes. How long would it take to have only 300 problems left?
--I got that it would take 1 hour and 10 minutes for there to only be 300 problems left. I would appreciate if someone checked this for me :)
(hope I selected the appropriate topic for this question)
Answer by josgarithmetic(39630) About Me  (Show Source):