document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=291389>Question 291389</A>: <I><SPAN STYLE=\"word-break: break-all;\"> mary has $3.75 in nickels,dimes,quarters. she has three more quarters than dimes. she has twice as many nickels as quarters. how many of each coin does she have? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #210728 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=210728\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> mary has $3.75 in nickels,dimes,quarters. she has three more quarters than dimes. she has twice as many nickels as quarters. how many of each coin does she have?<BR>\n" );
document.write( "--------------------------------------------<BR>\n" );
document.write( "Equations:<BR>\n" );
document.write( "Value Eq:::: 5n + 10d + 25q = 375 cents<BR>\n" );
document.write( "Quantity:::: q = d + 3<BR>\n" );
document.write( "Quantity:::: n = 2q<BR>\n" );
document.write( "---------------------------------<BR>\n" );
document.write( "Substitute for \"d\" dnd for \"n\" and solve for \"q\":<BR>\n" );
document.write( "5(2q) + 10(q-3) + 25q = 375<BR>\n" );
document.write( "10q + 10q - 30 + 25q = 375<BR>\n" );
document.write( "45q = 405<BR>\n" );
document.write( "q = 9 (# of quarters)<BR>\n" );
document.write( "n = 2q = 18 (# of quarters)<BR>\n" );
document.write( "d = q-3 = 6 (# of dimes)<BR>\n" );
document.write( "============================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );