document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1005063>Question 1005063</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Kathryn put her nickels and dimes in a piggy bank. One day she emptied it and counted 25 coins, which totaled $2.05. Using a linear system, how many dimes did Kathryn have? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #621366 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=621366\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> n+d= 25 subtract n from both sides:<BR>\n" );
document.write( "d= 25-n We will use this value for d in the next equation<BR>\n" );
document.write( "----------------------------<BR>\n" );
document.write( "0.05n+0.1(25-n)= 2.05<BR>\n" );
document.write( "0.05n+2.5-0.1n= 2.05<BR>\n" );
document.write( "-0.05n= -0.45 Divide both sides by -0.05 and remember that -/-=+:<BR>\n" );
document.write( "n= 9 You have 9 nickels and:<BR>\n" );
document.write( "25-9= 16 dimes<BR>\n" );
document.write( "---------------------------<BR>\n" );
document.write( "Proof:<BR>\n" );
document.write( "9(0.05)+16(0.10)= 2.05<BR>\n" );
document.write( "0.45+1.60= 2.05<BR>\n" );
document.write( "2.05= 2.05 We have the correct answer </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );