document.write( "Question 864310: Find the time required for an investment of 5000 dollars to grow to 8100 dollars at an interest rate of 7.5 percent per year, compounded quarterly. Round your answer to at least 4 decimal places. \n" ); document.write( "

Algebra.Com's Answer #521085 by Fombitz(32388) $\"\"$ $\"About$

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$\"8100=5500%281%2B0.075%2F4%29%5EN\"$
\n" ); document.write( " $\"1.47272=1.01875%5EN\"$
\n" ); document.write( " $\"N=log%281.47272%29%2Flog%281.01875%29\"$
\n" ); document.write( " $\"N=20.8%29\"$ quarters.
\n" ); document.write( " $\"N=21%29\"$ quarters. \n" ); document.write( "

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