document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=176729>Question 176729</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Maggie makes a $9.25 purchase at a bookstore in Reno with a $20 bill. The store has no bills and gives her the change in quarters and fifty-cent pieces. There are 30 coins in all. How many of each kind are there?<BR>\n" );
document.write( " <BR>\n" );
document.write( "please help me! thank you!! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #131799 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley75><B>checkley75(3666)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley75><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=131799\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 20-9.25=10.75 is the amount of change.<BR>\n" );
document.write( ".25x+.5(30-x)=10.75<BR>\n" );
document.write( ".25x+15-.5x=10.75<BR>\n" );
document.write( "-.25x=10.75-15<BR>\n" );
document.write( "-.25x=-4.25<BR>\n" );
document.write( "x=4.25/-.25<BR>\n" );
document.write( "x=17 number of quarters.<BR>\n" );
document.write( "30-17=13 number of half dollares.<BR>\n" );
document.write( "Proof:<BR>\n" );
document.write( ".25*17+.50*13=10.75<BR>\n" );
document.write( "4.25+6.50=10.75<BR>\n" );
document.write( "10.75=10.75\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );