document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=171369>Question 171369</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0534492770/algebrahomeworkh>Precalculus</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> Mary has $3.00 in nickels, dimes, and quarters. If she has twice as many dimes as quarters and five more nickels than dimes, how many coins of each type does she have? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #126596 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=126596\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .05N+.10D+.25Q=3.00<BR>\n" );
document.write( "D=2Q<BR>\n" );
document.write( "N=D+5 OR N=(2Q)+5<BR>\n" );
document.write( ".05(2Q+5)+.10*2Q+.25Q=3.00<BR>\n" );
document.write( ".10Q+.25+.20Q+.25Q=3.00<BR>\n" );
document.write( ".55Q=3.00-.25<BR>\n" );
document.write( ".55Q=2.75<BR>\n" );
document.write( "Q=2.75/.55 <BR>\n" );
document.write( "Q=5 NUMBER OF QUARTERS.<BR>\n" );
document.write( "D=2*5=10 NUMBER OF DIMES.<BR>\n" );
document.write( "N=10+5=15 NUMBER OF NICKLES.<BR>\n" );
document.write( "PROOF:<BR>\n" );
document.write( ".05*15+.10*10+.25*5=3.00<BR>\n" );
document.write( ".75+1+1.25=3.00<BR>\n" );
document.write( "3.00=3.00<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );