document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=199219>Question 199219</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A jar contains a total of 85 coins, all of which are either DIMES OR QUARTERS. If the coins together are worth $15.40, how many of each type of coin are in the jar?\r<BR>\n" );
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document.write( "Please help -- can't figure this one out.\r<BR>\n" );
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document.write( "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 #149690 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=149690\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A jar contains a total of 85 coins, all of which are either DIMES OR QUARTERS. If the coins together are worth $15.40, how many of each type of coin are in the jar? <BR>\n" );
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document.write( "D + Q = 85 (# of coins)<BR>\n" );
document.write( "10D + 25Q = 1540 (value of coins)<BR>\n" );
document.write( "D = 85-Q<BR>\n" );
document.write( "Sub for D<BR>\n" );
document.write( "10*(85-Q) + 25Q = 1540<BR>\n" );
document.write( "850-10Q + 25Q = 1540<BR>\n" );
document.write( "15Q = 690<BR>\n" );
document.write( "Q = 46<BR>\n" );
document.write( "D = 39<BR>\n" );
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