document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=35290>Question 35290</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A vending machine which takes only nickles and dimes contains $4.50. The number of dimes is 5 more than twice the number of nickles.  How many of each coin are there?\r<BR>\n" );
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document.write( "I started with 2n + 5 = 4.50 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #21450 by </B><A HREF=/tutors/aboutme.mpl?userid=narayaba><B>narayaba(40)</B></A><img src=\"/images/stars/stars-07.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=narayaba><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=21450\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let x denote the number of nickels present in the vending machine<BR>\n" );
document.write( "the number of dimes is 5 more than twice the number of nickels<BR>\n" );
document.write( "therefore the number of dimes present in the vending machine is 2x + 5 \r<BR>\n" );
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document.write( "the total amount in the vending machine is $4.50 which is 450 cents\r<BR>\n" );
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document.write( "a dime is 10 cents and nickel is 5 cents\r<BR>\n" );
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document.write( "the amount from the dimes is (2x + 5)*10<BR>\n" );
document.write( "the amount from nickels is x*5\r<BR>\n" );
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document.write( "(2x+5)*10 + 5*x = 450<BR>\n" );
document.write( "25x + 50 = 450<BR>\n" );
document.write( "25x = 400<BR>\n" );
document.write( "x = 16<BR>\n" );
document.write( "the number of nickels is 16<BR>\n" );
document.write( "the number of dimes is 2*16 + 5 = 37 </SPAN>\n" );
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