document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=542082>Question 542082</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A coin bank contains only nickels, dimes, and quarters. The value of the 31 coins in the bank is $2.80.There are twice as many nickels as dimes. Find the number of each type of coin in the bank. \r<BR>\n" );
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document.write( "So far I have done: Dimes=x<BR>\n" );
document.write( "                   Nickels=2x<BR>\n" );
document.write( "                   Quarters=(31-x)\r<BR>\n" );
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document.write( "Dimes= 10 times x<BR>\n" );
document.write( "Nickels= 5 times 2x<BR>\n" );
document.write( "Quarters= 25 (31-x)\r<BR>\n" );
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document.write( "5(2x)+10x+25(31-x)=280<BR>\n" );
document.write( "10x+10x+775-25x=280<-----doesn't look right. \r<BR>\n" );
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document.write( "I believe I am messing up on the quarters section.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #354956 by </B><A HREF=/tutors/aboutme.mpl?userid=jpg7n16><B>jpg7n16(66)</B></A><img src=\"/images/stars/stars-08.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jpg7n16><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=354956\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> \"So far I have done: Dimes=x\" this part is right, though I like to use D for dimes<BR>\n" );
document.write( "\"Nickels=2x\" Again, right.<BR>\n" );
document.write( "\"Quarters=(31-x)\" This is wrong. What you are saying with this equation is that <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Quarters=31-Dimes ALIGN=MIDDLE  ALT=\"Quarters=31-Dimes\"   DISABLED_style= \"max-width:90%; height:auto;\" >. But what about the nickels? should be:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Q=31-d-n=31-d-2d=31-3d ALIGN=MIDDLE  ALT=\"Q=31-d-n=31-d-2d=31-3d\"   DISABLED_style= \"max-width:90%; height:auto;\" > or in your case<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Q=31-3x ALIGN=MIDDLE  ALT=\"Q=31-3x\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ".<BR>\n" );
document.write( "\"Dimes= 10 times x\" Correct<BR>\n" );
document.write( "\"Nickels= 5 times 2x\" Correct<BR>\n" );
document.write( "\"Quarters= 25 (31-x)\" Use above formula.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Q=25%2A%2831-3x%29 ALIGN=MIDDLE  ALT=\"Q=25%2A%2831-3x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "And solving:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10x%2B5%2A2x%2B25%2A%2831-3x%29=280 ALIGN=MIDDLE  ALT=\"10x%2B5%2A2x%2B25%2A%2831-3x%29=280\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10x%2B10x%2B775-75x=280 ALIGN=MIDDLE  ALT=\"10x%2B10x%2B775-75x=280\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-55x=-495 ALIGN=MIDDLE  ALT=\"-55x=-495\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=9 ALIGN=MIDDLE  ALT=\"x=9\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "And I believe you've got it from here! Hope this helps </SPAN>\n" );
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