document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1202746>Question 1202746</A>: <I><SPAN STYLE=\"word-break: break-all;\"> In a library, 40% of the books were fiction and the rest were non-fiction. When 875 books were borrowed, the number of fiction books became half of the original number and the number of non-fiction books were decreased by 25%.<BR>\n" );
document.write( "a) How many non-fiction books were borrowed?<BR>\n" );
document.write( "b) How many fiction books were there at first? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #837831 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39618)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=837831\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> t, original number of books<BR>\n" );
document.write( "0.4t were fiction<BR>\n" );
document.write( "0.6t were nonfiction\r<BR>\n" );
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document.write( "875, number of borrowed books<BR>\n" );
document.write( "n+f=875<BR>\n" );
document.write( "n=875-f\r<BR>\n" );
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document.write( "When 875 books were borrowed, the number of fiction books became half of the original <BR>\n" );
document.write( "number and the number of non-fiction books were decreased by 25%.<BR>\n" );
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document.write( "That seems to say, \"the number of fiction books became HALF of the original number of <BR>\n" );
document.write( "the fiction books,...\"\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%280.4t-f=%280.5%29%280.4%29t%2C0.6t-%28875-f%29=%280.75%29%280.6%29t%29 ALIGN=MIDDLE  ALT=\"system%280.4t-f=%280.5%29%280.4%29t%2C0.6t-%28875-f%29=%280.75%29%280.6%29t%29\"   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=system%280.4t-f=0.2t%2C0.6t%2Bf-875=0.45t%29 ALIGN=MIDDLE  ALT=\"system%280.4t-f=0.2t%2C0.6t%2Bf-875=0.45t%29\"   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=system%280.2t=f%2C0.15t%2Bf=875%29 ALIGN=MIDDLE  ALT=\"system%280.2t=f%2C0.15t%2Bf=875%29\"   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=substitution_for_f ALIGN=MIDDLE  ALT=\"substitution_for_f\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0.15t%2B0.2t=875 ALIGN=MIDDLE  ALT=\"0.15t%2B0.2t=875\"   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=0.35t=875 ALIGN=MIDDLE  ALT=\"0.35t=875\"   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=highlight_green%28t=2500%29 ALIGN=MIDDLE  ALT=\"highlight_green%28t=2500%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, the original total number of books before some were checked-out or removed\r<BR>\n" );
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document.write( ".\r<BR>\n" );
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