document.write( "Question 1179485: For a car loan using simple interest at a given​ rate, the amount of interest charged varies jointly with the loan amount​ (also known as the​ principal) and the time of the loan​ (in years). If a $15,000 car loan earns ​$2100 in simple interest over 5 ​years, how much interest will a ​$32,000 car loan earn over 7 ​years? \n" ); document.write( "
Algebra.Com's Answer #809159 by ikleyn(52795)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "            Thanks to tutor @MathTherapy, who noticed/detected the  FATAL  ERROR  in the @mananth solution.\r
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\n" ); document.write( "\n" ); document.write( "            Thanks to tutor @greenestamps,  who presented an improved solution.\r
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\n" ); document.write( "\n" ); document.write( "            Since the writing by @greenestamps is still not free of errors,  I came to further improve it.\r
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document.write( "i = prt\r\n" );
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document.write( "2100=(15000)(r)(5)\r\n" );
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document.write( "2100=75000r\r\n" );
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document.write( "r=2100/75000=0.028 or 2.8%.     <<<---===  it is where I edited the solution by @greenestamps \r\n" );
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document.write( "Then apply that interest rate to the new set of numbers:\r\n" );
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document.write( "i = prt\r\n" );
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document.write( "i = (32000)(0.028)(7) = 6272  dollars.      ANSWER\r\n" );
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\n" ); document.write( "\n" ); document.write( "It is why I highly appreciate the work by  @MathTherapy.\r
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