document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=15395>Question 15395</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Don has 80 coins. He has 4 times as many dimes as nickels and the remaining are pennies. With a single variable, express the number. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #7630 by </B><A HREF=/tutors/aboutme.mpl?userid=rapaljer><B>rapaljer(4671)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rapaljer><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=rapaljer><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=7630\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let x = number of nickels<BR>\n" );
document.write( "4x = number of dimes\r<BR>\n" );
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document.write( "Number of pennies = (total number of coins) - (sum of the nickels and dimes)<BR>\n" );
document.write( "80 - (x+4x) = number of pennies<BR>\n" );
document.write( "80-5x = number of pennies\r<BR>\n" );
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document.write( "Total value = value of each type of coin times the number of coins.<BR>\n" );
document.write( "Value = 5(x) + 10(4x) + 1(80-5x)<BR>\n" );
document.write( "Value = 5x + 40x + 80 - 5x <BR>\n" );
document.write( "Value = 40x + 80\r<BR>\n" );
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document.write( "That's it!  Of course you can't solve it since you don't know the total value of all the coins.\r<BR>\n" );
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document.write( "R^2 at SCC </SPAN>\n" );
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