document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1179485>Question 1179485</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 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? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #809143 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13200)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=809143\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "The response you should ignore is the one from tutor @MathTherapy, since it contains nothing that helps YOU learn how to solve the problem.<br><BR>\n" );
document.write( "Instead, use the method shown by the other tutor; but use the correct given information.<br><BR>\n" );
document.write( "i = prt<BR>\n" );
document.write( "2100=(15000)(r)(5)<BR>\n" );
document.write( "2100=75000r<BR>\n" );
document.write( "r=75000/2100=0.028 or 2.8%<br><BR>\n" );
document.write( "Then apply that interest rate to the new set of numbers:<br><BR>\n" );
document.write( "i = prt<BR>\n" );
document.write( "i = (32000)(0.028)(7)<br><BR>\n" );
document.write( "You can do the calculation to finish the problem.<br><BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );