SOLUTION: In cutting down from 5,000 to 1,578 friends in 7 hours, how many friends did crystal delete on average

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Question 756934: In cutting down from 5,000 to 1,578 friends in 7 hours, how many friends did crystal delete on average
Answer by Cromlix(4381) About Me  (Show Source):
You can put this solution on YOUR website!
5,000 - 1,578 = 3422
3422/7 hours = 488 per hour on average.