document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=127579>Question 127579</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An instrument store gives a 10% discount to all students off the original cost of an instrument. During a back to school sale an additional 15% is taken off the discounted price. Julie, a student at the local high school, purchases a flute for $306. How much did it originally cost?  <BR>\n" );
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document.write( "I really need some help on this one.<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #93487 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=93487\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The original price was x.  So after the 10% discount the price was <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0.9x ALIGN=MIDDLE  ALT=\"0.9x\"   DISABLED_style= \"max-width:90%; height:auto;\" >.  That price was then discounted 15%, so the price is now <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%280.85%29%28.9%29x ALIGN=MIDDLE  ALT=\"%280.85%29%28.9%29x\"   DISABLED_style= \"max-width:90%; height:auto;\" >, but we know this expression is equal to $306, because that is what was paid.  So:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%280.85%29%28.9%29x=306 ALIGN=MIDDLE  ALT=\"%280.85%29%28.9%29x=306\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0.765x=306 ALIGN=MIDDLE  ALT=\"0.765x=306\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=306%2F.765 ALIGN=MIDDLE  ALT=\"x=306%2F.765\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=400 ALIGN=MIDDLE  ALT=\"x=400\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Check:\r<BR>\n" );
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document.write( "If the original price was 400, the 10% discount price would have been 400 - 40 = 360, then the 15% discount would have been 360 * .15 = 54, so the final price would be 360 - 54 = 306.  Checks.\r<BR>\n" );
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