document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=344714>Question 344714</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the question is:\r<BR>\n" );
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document.write( "Your piggy bank has a total of 47 coins in it; some are dimes and some are nickels. If you have a total of $3.95, how many nickels and how many dimes do you have? Show all of your work to receive full credit. \r<BR>\n" );
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document.write( "I tried for at least 20 min and only got this,\r<BR>\n" );
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document.write( "d+n=47<BR>\n" );
document.write( "-d   -d<BR>\n" );
document.write( ".10d+.05n=3.95\r<BR>\n" );
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document.write( "n=d+47\r<BR>\n" );
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document.write( ".10d+.05(d+47)=3.95<BR>\n" );
document.write( ".10d+.05d+2.35=3.95<BR>\n" );
document.write( "   .15d+2.35=3.95<BR>\n" );
document.write( "       -2.35 -2.35<BR>\n" );
document.write( " .15d=1.6<BR>\n" );
document.write( "/.15  /.15<BR>\n" );
document.write( "d=10.66 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #246678 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=246678\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Your piggy bank has a total of 47 coins in it; some are dimes and some are nickels. If you have a total of $3.95, how many nickels and how many dimes do you have? Show all of your work to receive full credit.<BR>\n" );
document.write( "I tried for at least 20 min and only got this,<BR>\n" );
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document.write( "d+n=47<BR>\n" );
document.write( ":<BR>\n" );
document.write( ".10d+.05n=3.95<BR>\n" );
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document.write( "n=d+47; this is wrong, it should be<BR>\n" );
document.write( "n = (47-d)<BR>\n" );
document.write( "so you have:<BR>\n" );
document.write( ".10d+.05(47-d)=3.95<BR>\n" );
document.write( ".10d + 2.35 - .05d = 3.95<BR>\n" );
document.write( ".10d - .05d = 3.95 - 2.35<BR>\n" );
document.write( ".05d = 1.60<BR>\n" );
document.write( "d = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1.6%2F.05 ALIGN=MIDDLE  ALT=\"1.6%2F.05\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "d = 32 dimes<BR>\n" );
document.write( "then<BR>\n" );
document.write( "n = 47 - 32<BR>\n" );
document.write( "n = 15 nickels<BR>\n" );
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document.write( "Check this<BR>\n" );
document.write( ".05(15) + .10(32) =<BR>\n" );
document.write( ".75 + 3.20 = 3.95<BR>\n" );
document.write( ";<BR>\n" );
document.write( "You had the right idea, but a fatal mistake right at the beginning.  </SPAN>\n" );
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