document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=915196>Question 915196</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A collection of nickels, dimes, and quarters amounts to $7.50. If there are 120 coins in all and there are twice as many dimes as there are quarters, find the number of nickels.<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 #555489 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39626)</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=555489\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0.05%2An%2B0.10d%2B0.25q=7.50 ALIGN=MIDDLE  ALT=\"0.05%2An%2B0.10d%2B0.25q=7.50\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%28n%2B2d%2B5q=150%29 ALIGN=MIDDLE  ALT=\"highlight_green%28n%2B2d%2B5q=150%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=highlight_green%28n%2Bd%2Bq=120%29 ALIGN=MIDDLE  ALT=\"highlight_green%28n%2Bd%2Bq=120%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=2%2F1=d%2Fq ALIGN=MIDDLE  ALT=\"2%2F1=d%2Fq\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%282q=d%29 ALIGN=MIDDLE  ALT=\"highlight_green%282q=d%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The simple way to do is substitute for d in the other two equations, and simplify; and then solve the system of the TWO linear equations in n and q. </SPAN>\n" );
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