document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=645379>Question 645379</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi there i need your help<BR>\n" );
document.write( "can you please help me answer this question. im realy not sure where even to start.\r<BR>\n" );
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document.write( "here is the question: <BR>\n" );
document.write( "A girl saves $1 and $2 coins. She takes it to a bank, she has 180 coins in total that equals $260. Use simultaneous equations to work out how many $1 and $2 coins there are.\r<BR>\n" );
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document.write( "thank you<BR>\n" );
document.write( "nichola </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #405440 by </B><A HREF=/tutors/aboutme.mpl?userid=nerdybill><B>nerdybill(7384)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nerdybill><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=nerdybill><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=405440\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A girl saves $1 and $2 coins. She takes it to a bank, she has 180 coins in total that equals $260. Use simultaneous equations to work out how many $1 and $2 coins there are. <BR>\n" );
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document.write( "Let x = number of $1 coins<BR>\n" );
document.write( "y = number of $2 coins<BR>\n" );
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document.write( "from:\"she has 180 coins\" we get equation 1:<BR>\n" );
document.write( "x+y = 180<BR>\n" );
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document.write( "from:\"total that equals $260\" we get equation 2:<BR>\n" );
document.write( "x + 2y = 260<BR>\n" );
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document.write( "solve equation 1 for y:<BR>\n" );
document.write( "x+y = 180<BR>\n" );
document.write( "y = 180-x<BR>\n" );
document.write( "substitute above into equation 2:<BR>\n" );
document.write( "x+y = 180<BR>\n" );
document.write( "x + 2(180-x) = 260<BR>\n" );
document.write( "x + 360-2x = 260<BR>\n" );
document.write( "360-x = 260<BR>\n" );
document.write( "-x = -100<BR>\n" );
document.write( "x = 100 (number of $1 coins)<BR>\n" );
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document.write( "Number of $2 coins:<BR>\n" );
document.write( "x+y = 180<BR>\n" );
document.write( "100+y = 180<BR>\n" );
document.write( "y = 80<BR>\n" );
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