document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=448584>Question 448584</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What formula do I use to find the original price of something? I know the final amount and the percentage added. Example: the final amount is $100.00. The percentage added is 20%. What is the original amount without the 20% added? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #308653 by </B><A HREF=/tutors/aboutme.mpl?userid=nerdybill><B>nerdybill(7384)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nerdybill><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=nerdybill><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=308653\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> What formula do I use to find the original price of something? I know the final amount and the percentage added. Example: the final amount is $100.00. The percentage added is 20%. What is the original amount without the 20% added?<BR>\n" );
document.write( "Let x = original price<BR>\n" );
document.write( "then<BR>\n" );
document.write( "x + .20x = 100<BR>\n" );
document.write( "x(1+.20) = 100<BR>\n" );
document.write( "1.20x = 100<BR>\n" );
document.write( "x = 100/1.20  (this is what you're looking for)<BR>\n" );
document.write( "x = $83.33<BR>\n" );
document.write( "replace the 100 with whatever other \"final amount\" and you'll see the original price\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );