document.write( "Question 868846: Find out how many years it takes $1800 to double at 3.2% interest compounded weekly.\r
\n" ); document.write( "\n" ); document.write( "Use equation: A=P(1+r/n)^nt\r
\n" ); document.write( "\n" ); document.write( "Show all steps.
\n" ); document.write( "

Algebra.Com's Answer #523888 by MathTherapy(10552)\"\" \"About 
You can put this solution on YOUR website!
Find out how many years it takes $1800 to double at 3.2% interest compounded weekly.\r
\n" ); document.write( "\n" ); document.write( "Use equation: A=P(1+r/n)^nt\r
\n" ); document.write( "\n" ); document.write( "Show all steps.
\n" ); document.write( "

\n" ); document.write( "Doesn't matter what amount is used, the outcome is the same. All that matters is whether the initial investment
\n" ); document.write( "or P, is doubled or tripled, the compounding periods, and the interest rate.
\n" ); document.write( "\"A+=+P%281+%2B+r%2Fn%29%5Ent\"
\n" ); document.write( "\"2P+=+P%281+%2B+r%2Fn%29%5Ent\"
\n" ); document.write( "\"2P+=+P%281+%2B+.032%2F52%29%5E%2852t%29\"
\n" ); document.write( "\"2+=+%281+%2B+.032%2F52%29%5E%2852t%29\"
\n" ); document.write( "\"2+=+1.000615%5E%2852t%29\" -------- Exponential form
\n" ); document.write( "\"log+%281.000615%2C+2%29+=+52t\" ------ Logarithmic form
\n" ); document.write( "\"highlight_green%28t+=+%28log+2%29%2F%28log+1.000615%29%29\" ÷ \"highlight_green%2852%29\" \n" ); document.write( "
\n" );