document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=600419>Question 600419</A>: <I><SPAN STYLE=\"word-break: break-all;\"> andy has eighteen coins made up of quarters and half dollars, and their total value is $7.50. How many quarters does he have? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #379328 by </B><A HREF=/tutors/aboutme.mpl?userid=alicealc><B>alicealc(293)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=alicealc><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=379328\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> number of quarters coins = q<BR>\n" );
document.write( "number of half-dollars coins = h\r<BR>\n" );
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document.write( "q + h = 18\r<BR>\n" );
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document.write( "1/4 q + 1/2 h = 7.5<BR>\n" );
document.write( "multiply all by 4:<BR>\n" );
document.write( "q + 2h = 30\r<BR>\n" );
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document.write( "use the elimination procedure:<BR>\n" );
document.write( "q +  h = 18<BR>\n" );
document.write( "q + 2h = 30<BR>\n" );
document.write( "------------ (-)<BR>\n" );
document.write( "-h = -12<BR>\n" );
document.write( "h = 12\r<BR>\n" );
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document.write( "q + 12 = 18<BR>\n" );
document.write( "q = 18 - 12 = 6\r<BR>\n" );
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document.write( "So he has 6 quarters<BR>\n" );
document.write( " </SPAN>\n" );
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