document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1130025>Question 1130025</A>: <I><SPAN STYLE=\"word-break: break-all;\">  a store charges $21 or six boxes of cookies . A second store charges $15 for five boxes of cookies but you have to buy a gallon of milk for two dollars to get that deal . Right to cost model equations for both stores and find the number of boxes of cookies that makes the cost equals . </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #746931 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39623)</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=746931\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "First Store:\r<BR>\n" );
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document.write( "customer must buy increments of 6 boxes.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2821%2F6%29%28dollars%2Fbox%29 ALIGN=MIDDLE  ALT=\"%2821%2F6%29%28dollars%2Fbox%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Second Store:<BR>\n" );
document.write( "The cost for the milk must be included but the emphasis is on the boxes of cookies;<BR>\n" );
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document.write( "customer must buy increments of 5 boxes.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28%2815%2B2%29%2F5%29%28dollars%2Fbox%29 ALIGN=MIDDLE  ALT=\"%28%2815%2B2%29%2F5%29%28dollars%2Fbox%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2817%2F5%29%28dollars%2Fbox%29 ALIGN=MIDDLE  ALT=\"%2817%2F5%29%28dollars%2Fbox%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "17*6 boxes at first store should match the cost of 21*5 boxes at second store.<BR>\n" );
document.write( "That is, 102 boxes at the first store should be same cost as 105 boxes at the second store. </SPAN>\n" );
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