SOLUTION: How many months will it take $640 invested at 3.35% to earn $250 interest?

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Question 1005349: How many months will it take $640 invested at 3.35% to earn $250 interest?
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
I=Prt
250=640*0.0335*t
250=21.44t
250/21.44=t
11.7 mo=t