document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1108661>Question 1108661</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Box contains 78 coins. Only dimes and nickels. Total amount in box $5.90. How many dimes and how many nickels are in box? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #723668 by </B><A HREF=/tutors/aboutme.mpl?userid=addingup><B>addingup(3677)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=addingup><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=addingup><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=723668\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> d + n = 78 subtract n from both sides<BR>\n" );
document.write( "d = 78 - n<BR>\n" );
document.write( "0.10d + 0.05n = 5.90 substitute for d:<BR>\n" );
document.write( "0.10(78 - n) + 0.05n = 5.90<BR>\n" );
document.write( "7.80 - 0.10n + 0.05n = 5.90<BR>\n" );
document.write( "7.80 - 0.05n = 5.90<BR>\n" );
document.write( "- 0.05n = - 1.90<BR>\n" );
document.write( "n = 38 so there are 38 nickels and 78 - 38 = 40 dimes<BR>\n" );
document.write( "-----------------------<BR>\n" );
document.write( "Check:<BR>\n" );
document.write( "38(0.05) + 40(0.10) = 5.90 Correct </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );