document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=433133>Question 433133</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Suppose you have 12 coins that total 32 cents.  Some coins are nickels, while the rest are pennies.  How many of each coin do you have?\r<BR>\n" );
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document.write( "Please show work and explain!\r<BR>\n" );
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document.write( "Thank you :) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #300228 by </B><A HREF=/tutors/aboutme.mpl?userid=katealdridge><B>katealdridge(100)</B></A><img src=\"/images/stars/stars-08.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=katealdridge><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=katealdridge><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=300228\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> This is a system of equations<BR>\n" );
document.write( "One equation involves the number of coins:<BR>\n" );
document.write( "n + p = 12<BR>\n" );
document.write( "The involves the total value:<BR>\n" );
document.write( ".05n + .01p = .32<BR>\n" );
document.write( "Solve the first equation for either variable, we'll choose n.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=n%2Bp=12 ALIGN=MIDDLE  ALT=\"n%2Bp=12\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=n=12-p ALIGN=MIDDLE  ALT=\"n=12-p\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Then take 12-p and substitute it in for n in the second equation.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=.05%2812-p%29%2B.01p=.32 ALIGN=MIDDLE  ALT=\".05%2812-p%29%2B.01p=.32\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Then solve for p.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=.60-.05p%2B.01p=.32 ALIGN=MIDDLE  ALT=\".60-.05p%2B.01p=.32\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=.60-.04p=.32 ALIGN=MIDDLE  ALT=\".60-.04p=.32\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-.04p=-.28 ALIGN=MIDDLE  ALT=\"-.04p=-.28\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=p=7 ALIGN=MIDDLE  ALT=\"p=7\"   DISABLED_style= \"max-width:90%; height:auto;\" > So there are 7 pennies. This leaves 5 nickels. </SPAN>\n" );
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