document.write( "Question 1164228: A sum of $2500, 00 earns interest at a rate of 12% per year compounded quarterly. How long will it take the investment to grow to $ 400, 000? \n" ); document.write( "
Algebra.Com's Answer #788560 by josgarithmetic(39620)\"\" \"About 
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How much is the sum to be invested?
\n" ); document.write( "Calling the sum to invest, A, then 12% per year compounded QUARTERLY, means \"12%2F4=3\" or 3% interest rate PER QUARTER.\r
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\n" ); document.write( "\n" ); document.write( "Wanted is finish with $400000.\r
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\n" ); document.write( "\n" ); document.write( "\"400000=A%2A%281.03%29%5En\", in which n is how many quarter-of-the-year periods; or how many three-month periods.\r
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\n" ); document.write( "\n" ); document.write( "Decide what your A value really is, and solve the equation for n; and then convert that into the number of years or months.
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