document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=126858>Question 126858</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0495012505/algebrahomeworkh>Intermediate Algebra</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> A collection of nickels, dimes, and quarters amounts to $10.00. If there are 140 coins in all and there are twice as many dimes as there are quarters, find the number of nickels. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #92938 by </B><A HREF=/tutors/aboutme.mpl?userid=edjones><B>edjones(8007)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=edjones><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=edjones><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=92938\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let n=number of nickels, d=dimes, q=quarters<BR>\n" );
document.write( "A) n+d+q=140<BR>\n" );
document.write( "B) .05n+.1d+.25q=10<BR>\n" );
document.write( "C) d=2q<BR>\n" );
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document.write( "A) <BR>\n" );
document.write( "n+2q+q=140<BR>\n" );
document.write( "n+3q=140<BR>\n" );
document.write( "n=140-3q<BR>\n" );
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document.write( "B) <BR>\n" );
document.write( ".05(140-3q)+.1(2q)+.25q=10<BR>\n" );
document.write( "7-.15q+.2q+.25q=10<BR>\n" );
document.write( "7+.3q=10<BR>\n" );
document.write( ".3q=3<BR>\n" );
document.write( "q=3/.3<BR>\n" );
document.write( "q=10<BR>\n" );
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document.write( "C) <BR>\n" );
document.write( "d=2*10<BR>\n" );
document.write( "d=20<BR>\n" );
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document.write( "A)<BR>\n" );
document.write( "n+20+10=140<BR>\n" );
document.write( "n+30=140<BR>\n" );
document.write( "n=110 Ans.<BR>\n" );
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document.write( "Check:<BR>\n" );
document.write( "B)<BR>\n" );
document.write( ".05*110+.1*20+.25*10=10<BR>\n" );
document.write( "5.5+2+2.5=10 True<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Ed <BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );