document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=206294>Question 206294</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Jill has $2 in nickels and dimes. She has twice as many nickels as she has dimes. How many nickels and how many dimes does she have?\r<BR>\n" );
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document.write( "This is what I did:<BR>\n" );
document.write( "let n represent nickels<BR>\n" );
document.write( "let d represent dimes.\r<BR>\n" );
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document.write( "Jill has $2 in nickels and dimes:<BR>\n" );
document.write( "5n + 10d = 200\r<BR>\n" );
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document.write( "She has twice as many nickels as she has dimes:<BR>\n" );
document.write( "d=2n\r<BR>\n" );
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document.write( "5n + 10(2n)=200<BR>\n" );
document.write( "5n + 20n = 200<BR>\n" );
document.write( "25n=200<BR>\n" );
document.write( "n=8\r<BR>\n" );
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document.write( "d=2n<BR>\n" );
document.write( "d=2(8)<BR>\n" );
document.write( "d=16\r<BR>\n" );
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document.write( "so if we have 8 nickels and 16 dimes, does it equal $2?\r<BR>\n" );
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document.write( "5n + 10d = 200<BR>\n" );
document.write( "5(8) + 10(16) = 200<BR>\n" );
document.write( "40 + 160 = 200<BR>\n" );
document.write( "200 = 200<BR>\n" );
document.write( "Is a true statement.\r<BR>\n" );
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document.write( "The answer in the book is 10 dimes and 20 nickels.<BR>\n" );
document.write( "I am not sure how they get this answer, but it is also true.\r<BR>\n" );
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document.write( "5n + 10d = 200<BR>\n" );
document.write( "5(20) + 10(10) = 200<BR>\n" );
document.write( "100 + 100 = 200<BR>\n" );
document.write( "200 = 200<BR>\n" );
document.write( "True statement.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #155854 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=155854\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Jill has $2 in nickels and dimes. She has twice as many nickels as she has dimes. How many nickels and how many dimes does she have? <BR>\n" );
document.write( "This is what I did:<BR>\n" );
document.write( "let n represent nickels<BR>\n" );
document.write( "let d represent dimes. <BR>\n" );
document.write( "Jill has $2 in nickels and dimes:<BR>\n" );
document.write( "5n + 10d = 200 <BR>\n" );
document.write( "She has twice as many nickels as she has dimes:<BR>\n" );
document.write( "d=2n <BR>\n" );
document.write( "-----------<BR>\n" );
document.write( "*** n = 2d, twice as many nickels.<BR>\n" );
document.write( "Sub for n into other eqn.<BR>\n" );
document.write( "5*2d + 10d = 200<BR>\n" );
document.write( "20d = 200<BR>\n" );
document.write( "d = 10<BR>\n" );
document.write( "n = 20\r<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );