document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=227261>Question 227261</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A purse containing $3.20 in quarters and dimes has, in all 20 coins. Find the number of each kind of coin.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #168922 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=168922\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Q+D=20 Q=20-D<BR>\n" );
document.write( ".25Q+.10D=3.20<BR>\n" );
document.write( ".25(20-D)+.10D=3.20<BR>\n" );
document.write( "5-.25D+.10D=3.20<BR>\n" );
document.write( "-.15D=3.20-5<BR>\n" );
document.write( "-.15D=-1.80<BR>\n" );
document.write( "D=-1.80/-.15<BR>\n" );
document.write( "D=12 DIMES ANS.<BR>\n" );
document.write( "Q=20-12=8 QUARTERS ANS.<BR>\n" );
document.write( "PROOF:<BR>\n" );
document.write( ".25*8=.10*12=3.20<BR>\n" );
document.write( "2+1.20=3.20<BR>\n" );
document.write( "3.20=3.20<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );