document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=771486>Question 771486</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a fruit dealer sold 9 dozen lemons and 16 dozen oranges for$17.40 . the following day he sold ,at the same prices,11 dozen lemons 20 dozen oranges for #21.60.find the prices of his lemons and oranges?\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #470257 by </B><A HREF=/tutors/aboutme.mpl?userid=Cromlix><B>Cromlix(4381)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Cromlix><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=Cromlix><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=470257\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Dozen Lemons = x<BR>\n" );
document.write( "Dozen Oranges = y<BR>\n" );
document.write( "9x + 16y = 1740....1<BR>\n" );
document.write( "11x + 20y = 2160....2<BR>\n" );
document.write( "Multiply (1) by 11<BR>\n" );
document.write( "Multiply (2) by 9<BR>\n" );
document.write( "99x + 176y = 19140....3<BR>\n" );
document.write( "99x + 180y = 19440....4<BR>\n" );
document.write( "Subtract (4) from (3)<BR>\n" );
document.write( "        4y = 300<BR>\n" );
document.write( "         y = 75.<BR>\n" );
document.write( "Substitute y = 75<BR>\n" );
document.write( "into Eq(1)<BR>\n" );
document.write( "9x + 16y = 1740<BR>\n" );
document.write( "9x + 1200 = 1740<BR>\n" );
document.write( "9x = 1740 - 1200<BR>\n" );
document.write( "9x = 540<BR>\n" );
document.write( "x = 60<BR>\n" );
document.write( "A dozen lemons cost 60 cents<BR>\n" );
document.write( "A dozen oranges cost 75 cents.<BR>\n" );
document.write( "Hope this helps.<BR>\n" );
document.write( ":-) </SPAN>\n" );
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