document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=676179>Question 676179</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi, this is my first time submitting a question. <BR>\n" );
document.write( "I get really REALLY  confused when it comes to percentages. I'm not boasting or anything, but I'm not bad at maths. But I just really can't understand percentages,interest, annum etc.\r<BR>\n" );
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document.write( "Example:<BR>\n" );
document.write( "You borrow 400pounds to buy a computer and was charged compound interest at 5% per annum. You decide to pay the loan back after 3years. How much interest do you have to pay.\r<BR>\n" );
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document.write( "I have a test coming up soon, and I really want to get a good grade. Usually I ask my dad for help and i eventually get it in the end, but I just keep forgetting how to solve it, how it works, and then I have to ask him again and its just an endless loop. But i can't ask him this time, because he's on a business trip.\r<BR>\n" );
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document.write( "I'm really fed up and stressed right now. Please help me!\r<BR>\n" );
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document.write( "(By the way I'm 13 years old, and english isn't my first language, although I can speak/ write fluently) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #420210 by </B><A HREF=/tutors/aboutme.mpl?userid=solver91311><B>solver91311(24713)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=solver91311><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=solver91311><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=420210\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <font face=\"Times New Roman\" size=\"+2\">\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE \ \ \ \ \ \ \ \ \ \ A\ =\ P(1\ +\ r)^t\">\r<BR>\n" );
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document.write( "Is the accumulated value of <IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE P\"> at <IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE r\"> per annum expressed as a decimal for <IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE t\"> years compounded annually, so:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE \ \ \ \ \ \ \ \ \ \ A\ =\ 400(1\ +\ 0.05)^3\">\r<BR>\n" );
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document.write( "The rest is just a bit of calculator work.  <IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE A\"> is then the total amount you have to pay back and represents the original principal PLUS the interest.  So if you only want to know the amount of the interest, subtract <IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE P\"> from <IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE A\">.\r<BR>\n" );
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document.write( "By the way, if you compound more frequently than annually,\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE \ \ \ \ \ \ \ \ \ \ A\ =\ P\left(1\ +\ \frac{r}{n}\right)^{nt}\">\r<BR>\n" );
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document.write( "Where <IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE n\"> is the number of compounding periods per year.\r<BR>\n" );
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document.write( "John<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE e^{i\pi}\ +\ 1\ =\ 0\"><BR>\n" );
document.write( "<font face=\"Math1\" size=\"+2\">Egw to Beta kai to Sigma</font><BR>\n" );
document.write( "My calculator said it, I believe it, that settles it<BR>\n" );
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