document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=28585>Question 28585</A>: <I><SPAN STYLE=\"word-break: break-all;\"> This one gets me because I think I'm close but cannot get a perfect match on the numbers.\r<BR>\n" );
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document.write( "I bought 4 bags of chips and 1 bag of peanuts for $1.75. Then my sister bough 2 bags of chips and 4 bags of peanuts for $2.00. Find the cost of a bage of chips and the cost for a bag of peanuts.\r<BR>\n" );
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document.write( "3x+1y=1.75<BR>\n" );
document.write( "2x+4y=2.00<BR>\n" );
document.write( "so,<BR>\n" );
document.write( "3x+1y=1.75<BR>\n" );
document.write( "-4x-8y=-400<BR>\n" );
document.write( "-7y=-2.25<BR>\n" );
document.write( "y=0.32\r<BR>\n" );
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document.write( "3x+1(0.32)=1.75<BR>\n" );
document.write( "3x+0.32=1.75<BR>\n" );
document.write( "3x=1.43<BR>\n" );
document.write( "x=0.47\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #15585 by </B><A HREF=/tutors/aboutme.mpl?userid=Paul><B>Paul(988)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Paul><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=15585\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let the cost of bag of chips be x<BR>\n" );
document.write( "Let the cost of bag of peanuts be y\r<BR>\n" );
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document.write( "4x+y=1.75----> y=1.75-4x (subsitution) \r<BR>\n" );
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document.write( "2x+4y=2<BR>\n" );
document.write( "Subsitute)<BR>\n" );
document.write( "2x+4(1.75-4x)=2<BR>\n" );
document.write( "2x-16x=2-7<BR>\n" );
document.write( "-14x=-5<BR>\n" );
document.write( "x=0.36 (rounded)\r<BR>\n" );
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document.write( "y=1.75-4(0.36)<BR>\n" );
document.write( "y=0.31\r<BR>\n" );
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document.write( "Hence, a cost of a bag of chips is $0.36 and a cost of a bag of peanuts is $0.31.<BR>\n" );
document.write( "Paul. </SPAN>\n" );
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