document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=159355>Question 159355</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0395977223/algebrahomeworkh></A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> I have twice as many nickels as quarters. If the coins are worth $4.90, how many quarters are there? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #117500 by </B><A HREF=/tutors/aboutme.mpl?userid=Earlsdon><B>Earlsdon(6294)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Earlsdon><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=117500\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let N = number of nickels and Q = number of quarters.<BR>\n" );
document.write( "1) N = 2Q \"I have twice as many nickels as quarters\"<BR>\n" );
document.write( "2) 0.05N+0.25Q = 4.90 \"...the coins are worth $4.90,...\"<BR>\n" );
document.write( "Substitute the N = 2Q into equation 2) and solve for Q to get the number of quarters.<BR>\n" );
document.write( "0.05(2Q)+0.25Q = 4.90 Simplify.<BR>\n" );
document.write( "0.35Q = 4.90 Divide both sides by 0.35<BR>\n" );
document.write( "Q = 14 This is the number of quarters.<BR>\n" );
document.write( "N = 2Q = 2(14) = 28  This is the number of nickels.<BR>\n" );
document.write( "Check: <BR>\n" );
document.write( "28(0.05)+14(0.25) = 1.40+3.50 = 4.90<BR>\n" );
document.write( " </SPAN>\n" );
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