document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=149706>Question 149706</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I tried to find an equation with the the unknown amount of coins but could not find one. I believe I need 3 seperate equations but I am not sure.<BR>\n" );
document.write( ".05N+.10D=5.65<BR>\n" );
document.write( ".05N+2 + .10D*2  <BR>\n" );
document.write( "(Not sure if this one is right. don't know the third one but I am pretty sure there is one Please help) \r<BR>\n" );
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document.write( "Joe has a collection of nickels and dimes that is worth $5.65. If the number of dimes were doubled and the number of nickels were increased by 8, the value of the coins would be $10.45. How many dimes does he have? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #739502 by </B><A HREF=/tutors/aboutme.mpl?userid=MathTherapy><B>MathTherapy(10552)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathTherapy><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=MathTherapy><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=739502\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I tried to find an equation with the the unknown amount of coins but could not find one. I believe I need 3 seperate equations but I am not sure.<BR>\n" );
document.write( ".05N+.10D=5.65<BR>\n" );
document.write( ".05N+2 + .10D*2  <BR>\n" );
document.write( "(Not sure if this one is right. don't know the third one but I am pretty sure there is one Please help) \r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Joe has a collection of nickels and dimes that is worth $5.65. If the number of dimes were doubled and the number of nickels were increased by 8, the value of the coins would be $10.45. How many dimes does he have?<BR>\n" );
document.write( "<PRE STYLE=\"white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;\">Your 1st equation: .05N + .1D = 5.65 is CORRECT, but you don't have a 2nd equation. Look below to see the 2nd equation you need to have.\r<BR>\n" );
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document.write( ".05N + .1D = 5.65 ------- eq (i)\r<BR>\n" );
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document.write( ".05(N + 8) + .1(2D) = 10.45<BR>\n" );
document.write( ".05N + .4 + .2D = 10.45<BR>\n" );
document.write( ".05N + .2D = 10.05 ------ eq (ii)\r<BR>\n" );
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document.write( "       .1D = 4.4 ------ Subtracting eq (i) from eq (ii)<BR>\n" );
document.write( "         D, or number of dimes = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%28matrix%281%2C3%2C+4.4%2F.1%2C+%22=%22%2C+44%29%29 ALIGN=MIDDLE  ALT=\"highlight_green%28matrix%281%2C3%2C+4.4%2F.1%2C+%22=%22%2C+44%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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