SOLUTION: how would you find the starting amount if you only have the intest rate, time and final amount? ex: y=c(1+r)^t 400=?(1+0.042)^6

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Question 746860: how would you find the starting amount if you only have the intest rate, time and final amount?
ex:
y=c(1+r)^t
400=?(1+0.042)^6
Answer by checkley79(3341) About Me  (Show Source):
You can put this solution on YOUR website!
400=?(1+0.042)^6
400=X(1.042)^6
400=X*1.28
X=400/1.28
X=$312.50 ANS.