document.write( "Question 923616: A car worth $12000, is purchased at the beginning of 2013, with a deposit of $2000. The remainder is borrowed from the bank, with interest compounding annually, and paid off in monthly instalments of $349.92, until the end of 2015.
\n" ); document.write( "What was the annual compound interest rate from the bank?\r
\n" ); document.write( "\n" ); document.write( "I got 1.71%.
\n" ); document.write( "Can anyone please help me work out the solution for this question?? :(
\n" ); document.write( "All your answers will be appreciated
\n" ); document.write( "thank you
\n" ); document.write( "

Algebra.Com's Answer #560161 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
The formula is:
\n" ); document.write( "\"+A+=+P%2A%28+1+%2B+r+%29%5Et+\"
\n" ); document.write( "for annually compounded interest loans
\n" ); document.write( "\"+t+\" is the years to pay off the loan
\n" ); document.write( "\"+r+\" = the interest rate
\n" ); document.write( "\"+P+\" = the principle of the loan
\n" ); document.write( "\"+A+\" = what you end up paying\r
\n" ); document.write( "\n" ); document.write( "-------------------------------
\n" ); document.write( "Take $2,000 off the principle, so the loan starts with
\n" ); document.write( "\"+12000+-+2000+=+10000+\"
\n" ); document.write( "\"+P+=+10000+\"
\n" ); document.write( "------------------
\n" ); document.write( "There are \"+36+\" in the \"+3+\" years from the beginning of
\n" ); document.write( "2013 to the end of2015
\n" ); document.write( "The amount paid to the bank in those \"3\" years is:
\n" ); document.write( "\"+36%2A349.92+=+12597.12+\"
\n" ); document.write( "\"+A+=+12597.12+\"
\n" ); document.write( "-------------------
\n" ); document.write( "\"+12597.12+=+10000%2A%28+1+%2B+r+%29%5E3+\"
\n" ); document.write( "\"+%28+1+%2B+r+%29%5E3+=+1.259712+\"
\n" ); document.write( "\"+3%2Alog%28+1+%2B+r+%29+=+log%28+1.259712+%29+\"
\n" ); document.write( "\"+3%2Alog%28+1+%2B+r+%29+=+.1002713+\"
\n" ); document.write( "\"+log%28+1+%2B+r+%29+=+.033424+\"
\n" ); document.write( "\"+10%5E%28.033424+%29+=+1+%2B+r+\"
\n" ); document.write( "\"+1+%2B+r+=+1.080001+\"
\n" ); document.write( "\"+r+=+.08+\"
\n" ); document.write( "The compound interest rate is 8%
\n" ); document.write( "Check my math, calculator work, and maybe
\n" ); document.write( "get a 2nd opinion, too\r
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