A man with $20,000 to invest decides to diversify his investments by placing $10,000 in an account that earns 5.2% compounded continuously and $10,000 in an account that earns 6.4% compounded annually. Use graphical approximation methods to determine how long it will take for his total investment in the two accounts to grow to $35,000. It will take approximately years for his total investment in the two accounts to grow to $35,000.

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