document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=151570>Question 151570</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A vending machine will accept nickels and dimes only. The attendant checks the machine and finds a total of 42 coins whose value is $3.40. How many coins of each type were there? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #111462 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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=111462\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> D+N=42 OR D=42-N<BR>\n" );
document.write( ".10D+.05N=3.40<BR>\n" );
document.write( ".10(42-N)+.05N=3.40<BR>\n" );
document.write( "4.20-.10N+.05N=3.40<BR>\n" );
document.write( "-.05N=3.40-4.20<BR>\n" );
document.write( "-.05N=.80<BR>\n" );
document.write( "N=-.80/-.05<BR>\n" );
document.write( "N=16 NUMBER OF NICKLES.<BR>\n" );
document.write( "42-16=26 NUMBER OF DIMES.<BR>\n" );
document.write( "PROOF:<BR>\n" );
document.write( ".10*26+.05*18=3.40<BR>\n" );
document.write( "2.60+.80=3.40<BR>\n" );
document.write( "3.40=3.40<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );