document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=458568>Question 458568</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If a couch cost $640 after a 20% discount, what was its original price? \r<BR>\n" );
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document.write( "I did 640x.20 and got 128.00 Then I added 128+640 and got 768. \r<BR>\n" );
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document.write( "When I checked the answer sheet it says its 800. I want to know why? Isnt the formula for decreasing and increasing percentage like this: price + (price x %)<BR>\n" );
document.write( "And Price - (price x %) ? \r<BR>\n" );
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document.write( "I also tried 20/100 = 640/x and got a diferent answer. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #314563 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=314563\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If a couch cost $640 after a 20% discount, what was its original price? <BR>\n" );
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document.write( "Let the original price be \"x\".<BR>\n" );
document.write( "Equation:<BR>\n" );
document.write( "x - 0.20x = 640<BR>\n" );
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document.write( "0.80x = 640<BR>\n" );
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document.write( "x = 640/0.80<BR>\n" );
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document.write( "x = $800 (original price)<BR>\n" );
document.write( "============================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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