document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=788188>Question 788188</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Raisins sell for $3.50 per pound, and granola sells for $5.90 per pound. Terri bought some raisins and some granola. The total weight was 2.1 pounds and cost $8.79.\r<BR>\n" );
document.write( "\n" );
document.write( "Let r represent the number of pounds of raisins Terri purchased. <BR>\n" );
document.write( " <BR>\n" );
document.write( "Which expression represents the number of pounds of granola she purchased? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #478455 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=478455\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> This is a mixture problem.  The prices are like concentration in units dollars per pound.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "r = how many raisins<BR>\n" );
document.write( "g = how many granola<BR>\n" );
document.write( "(both as pounds)\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%283.50r%2B5.90g%29%2F2.1=8.79%2F2.1 ALIGN=MIDDLE  ALT=\"%283.50r%2B5.90g%29%2F2.1=8.79%2F2.1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "But you do not need to show as concentration or cost per pound; you just need this:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%283.5r%2B5.9g=8.79%29 ALIGN=MIDDLE  ALT=\"highlight%283.5r%2B5.9g=8.79%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "You also need <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28r%2Bg=2.1%29 ALIGN=MIDDLE  ALT=\"highlight%28r%2Bg=2.1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "THE REST OF THE PROCESS:<BR>\n" );
document.write( "You are asked for the pounds of raisins, so solve the system for r.  First solve one equation for g, and substitute this expression for g in the other equation; and from this, solve for r. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );