document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=190137>Question 190137</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the student councilat JeffersonHigh School sold a total of 220 brownies and cookies during its fund-raiser. Each brownie sold for $0.75. and each cookie sold for $0.50. the student council made $136.50 from the sales of brownies and cookies. Which system of linear equations can be used to find b, the number of brownies sold, and c, the number of cookies sold? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #142711 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=142711\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .<BR>\n" );
document.write( "Let b = number of brownies sold<BR>\n" );
document.write( "and c = number of cookies sold<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Since we have two unknowns, we'll need two equations:<BR>\n" );
document.write( ".<BR>\n" );
document.write( "b + c = 220<BR>\n" );
document.write( ".75b + .50c = 136.50<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );