document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=827181>Question 827181</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve by using 2 unknowns:<BR>\n" );
document.write( "I have $1.60 in nickels and dimes. If the nickels had been pennies and the dimes had been quarters, then I would have $1.70. How many nickels and dimes do I actually have?<BR>\n" );
document.write( "Start with 5n+10d=160 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #498501 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=498501\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The second part, \"if\", means different coefficients.\r<BR>\n" );
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document.write( "Pennies, 0.01 dollar per coin or 1 cent per coin;<BR>\n" );
document.write( "Quarters, 0.25 dollar per coin or 25 cents per coin.\r<BR>\n" );
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document.write( "You already have your counts, n and d.  Now, each counts some other coin value, but still the same n and d.<BR>\n" );
document.write( "Keeping the equation in cents, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2An%2B25%2Ad=170 ALIGN=MIDDLE  ALT=\"1%2An%2B25%2Ad=170\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "System to solve is:<BR>\n" );
document.write( "n+25d=170 and 5n+10d=160\r<BR>\n" );
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document.write( "Simplify the \"160\" equation by multiplying left and right sides by (1/5) to have n+2d=32 </SPAN>\n" );
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