document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=9352>Question 9352</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Have several problems like this one:  (Need a formula) \r<BR>\n" );
document.write( "\n" );
document.write( "Mr. Merrill has 3 times as many nickels as dimes.  The coins have a total value of $1.50.  How many of each coin does he have?  (I know the answer is 18 nickels and 6 dimes but it comes from experience of handling change in a store and I don't know how to arrive at a formula or equation.)  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #5115 by </B><A HREF=/tutors/aboutme.mpl?userid=DWL><B>DWL(56)</B></A><img src=\"/images/stars/stars-08.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=DWL><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=5115\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let X = dimes\r<BR>\n" );
document.write( "\n" );
document.write( "Let Y = Nickels\r<BR>\n" );
document.write( "\n" );
document.write( "We know Y = 3X\r<BR>\n" );
document.write( "\n" );
document.write( "We also know that .10 = Dimes and .05 = Nickles\r<BR>\n" );
document.write( "\n" );
document.write( "So X+Y=1.50\r<BR>\n" );
document.write( "\n" );
document.write( "We substitue the following:\r<BR>\n" );
document.write( "\n" );
document.write( ".10X + 3(.05X)=1.50\r<BR>\n" );
document.write( "\n" );
document.write( ".10X + .15X = 1.50\r<BR>\n" );
document.write( "\n" );
document.write( ".25X = 1.50\r<BR>\n" );
document.write( "\n" );
document.write( "Divide both sides by .25\r<BR>\n" );
document.write( "\n" );
document.write( "X = 6 Dimes\r<BR>\n" );
document.write( "\n" );
document.write( "So we know we have 3 times as many nickels as dimes, 6 x 3 = 18.\r<BR>\n" );
document.write( "\n" );
document.write( "Answer:\r<BR>\n" );
document.write( "\n" );
document.write( "6 dimes = .60<BR>\n" );
document.write( "18 Nickels = .90\r<BR>\n" );
document.write( "\n" );
document.write( "Total = 1.50 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );