document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=948058>Question 948058</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The problem reads as follows.\r<BR>\n" );
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document.write( "I have 90 coins in my piggy bank, all of which are nickels and dimes. When I count the money in the piggy bank, I find that I have $15.10. How many nickels do I have and how many dimes do I have? Be sure to show all your work.\r<BR>\n" );
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document.write( "d+n= 90            d=90\r<BR>\n" );
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document.write( "0.05n +0.10d= $15.10<BR>\n" );
document.write( "0.05+0.10 (90n)= 15.10<BR>\n" );
document.write( "0.05n+ 9-0.10n= 15.10<BR>\n" );
document.write( "0.05n-d0.10n=6.10<BR>\n" );
document.write( "-0.05n=6.10 <BR>\n" );
document.write( "n=122\r<BR>\n" );
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document.write( "0.05 (90d) +0.10d= 15.10<BR>\n" );
document.write( "4.5-0.05d+0.10d= 15.10<BR>\n" );
document.write( "0.05d=10.6\r<BR>\n" );
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document.write( "d= 212 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #578613 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=578613\">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=system%28n%2Bd=90%2C0.05n%2B0.1d=15.10%29 ALIGN=MIDDLE  ALT=\"system%28n%2Bd=90%2C0.05n%2B0.1d=15.10%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%28n%2Bd=90%2Cn%2B2d=302%29 ALIGN=MIDDLE  ALT=\"system%28n%2Bd=90%2Cn%2B2d=302%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Subtract the coin count equation from the money count (simplified) equation.<BR>\n" );
document.write( "This is using the Elimination Method.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%28d=212%29 ALIGN=MIDDLE  ALT=\"highlight_green%28d=212%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "IMPOSSIBLE.\r<BR>\n" );
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document.write( "Check:  If all coins were nickels, then <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=15.10%2F0.05=302 ALIGN=MIDDLE  ALT=\"15.10%2F0.05=302\"   DISABLED_style= \"max-width:90%; height:auto;\" > coins.<BR>\n" );
document.write( "If all coins were dimes, then <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=15.10%2F%280.10%29=151 ALIGN=MIDDLE  ALT=\"15.10%2F%280.10%29=151\"   DISABLED_style= \"max-width:90%; height:auto;\" > coins.<BR>\n" );
document.write( "Number of total coins given was 90.<BR>\n" );
document.write( "-<BR>\n" );
document.write( "If all 90 coins were nickels, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0.05%2A90=40 ALIGN=MIDDLE  ALT=\"0.05%2A90=40\"   DISABLED_style= \"max-width:90%; height:auto;\" > dollars.<BR>\n" );
document.write( "If they were all dimes, then 80 dollars.<BR>\n" );
document.write( "Amount of money given was $15.10.\r<BR>\n" );
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document.write( "The problem description is wrong.<BR>\n" );
document.write( " </SPAN>\n" );
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