SOLUTION: At what interest rate will $3400 become $7200 if it's compounded continuously for 13 years?

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Question 847843: At what interest rate will $3400 become $7200 if it's compounded continuously for 13 years?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
F=Pe%5E%28rt%29
7200=3400e%5E%2813r%29
18%2F17=e%5E%2813r%29
13r=ln%2836%2F17%29
r=%281%2F13%29ln%2836%2F17%29
or approximately,
r=0.05772