document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1167781>Question 1167781</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A clothes store sells boots, shoes and shirts. Each day, on<BR>\n" );
document.write( "average, three times as many shoes are sold as boots, and<BR>\n" );
document.write( "eight times as many shirts as shoes. The price of shoes is<BR>\n" );
document.write( "identical to that of boots  -  NIS 250, and the price of shirts is<BR>\n" );
document.write( "half of that price. In the last month, the store was open 20<BR>\n" );
document.write( "days, and its total income was NIS 480,000. How many shirts,<BR>\n" );
document.write( "on average, were sold each day in the last month?\r<BR>\n" );
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document.write( "(NIS is Israeli Currency) I don't understand how to make this into an algebraic<BR>\n" );
document.write( "equation. Please walk me through step by step.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #792391 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=792391\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let x = the number of boots sold each day.\r<BR>\n" );
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document.write( "since 3 times as many shoes as boots are sold each day, then ...<BR>\n" );
document.write( "3 * x = the number of shoes sold each day.\r<BR>\n" );
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document.write( "since 3 times as many shirts as shoes are sold each day, then ...<BR>\n" );
document.write( "8 * 3 * x = 24 * x shirts are sold each day.\r<BR>\n" );
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document.write( "to summarize, each day on average .....\r<BR>\n" );
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document.write( "x number of boots are sold.<BR>\n" );
document.write( "3 * x number of shoes are sold.<BR>\n" );
document.write( "24 * x number of shirts are sold.\r<BR>\n" );
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document.write( "since each pair of boots sells for 250 and each pair of shoes sells for 250 and each shirt sells for 125, then, for each day on average, .....\r<BR>\n" );
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document.write( "boot revenue = 250 * x<BR>\n" );
document.write( "shoe revenue = 3 * 250 * x = 750 * x<BR>\n" );
document.write( "shirt revenue = 24 * 125 * x = 3000 * x\r<BR>\n" );
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document.write( "multiply by 20, then, over a 20 day period, .....\r<BR>\n" );
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document.write( "boot revenue = 20 * 250 * x = 5000 * x<BR>\n" );
document.write( "shoe revenue = 20 * 750 * x = 15000 * x<BR>\n" );
document.write( "shirt revenue = 20 * 24 * 125 * x = 60,000 * x\r<BR>\n" );
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document.write( "total revenue over a 20 day period is equal to 80,000 * x\r<BR>\n" );
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document.write( "since total revenue over a 20 day period = 480,000, then solve for x to get:\r<BR>\n" );
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document.write( "x = 480,000 / 80,000 = 6\r<BR>\n" );
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document.write( "when x = 6, ....\r<BR>\n" );
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document.write( "x = 6 boots are sold each day on average.<BR>\n" );
document.write( "3 * 6 = 18 shoes are sold each day on average.<BR>\n" );
document.write( "24 * 6 = 144 shirts are sold each day on average.\r<BR>\n" );
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document.write( "144 shirts per day on average should be your solution, but that solution needs to be confirmed to make sure it's accurate.\r<BR>\n" );
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document.write( "over a 20 day period, .....\r<BR>\n" );
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document.write( "20 * 6 = 120 boots are sold.<BR>\n" );
document.write( "20 * 18 = 360 shoes are sold.<BR>\n" );
document.write( "20 *  144 = 2880 shirts are sold.\r<BR>\n" );
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document.write( "total revenue over the 20 day period is .....\r<BR>\n" );
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document.write( "120 * 250 + 360 * 250 + 144 * 125 = 480,000\r<BR>\n" );
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document.write( "value of 6 for x is confirmed to be good.\r<BR>\n" );
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document.write( "solution is that:\r<BR>\n" );
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document.write( "last month, 144 shirts were sold each day on average.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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