document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=113516>Question 113516</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A store has t-shirts on sale at 2 for $5.50.  At this rate, what do five T-shirts costs?\r<BR>\n" );
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document.write( "My solution is:\r<BR>\n" );
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document.write( "  2 shirts/$5.50 = x/5 shirts\r<BR>\n" );
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document.write( "=> 4 shirts = $22 \r<BR>\n" );
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document.write( "=> 1 shirt = $2.75\r<BR>\n" );
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document.write( "=>  $22+$2.75 = $24.75\r<BR>\n" );
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document.write( "Is that the right formula to get that result? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #82583 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=82583\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> We simply have this ratio:\r<BR>\n" );
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document.write( "# of T-shirt<BR>\n" );
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document.write( "   price\r<BR>\n" );
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document.write( "So if we have 2 t-shirts for $5.50 and 5 t-shirts for x dollars, we'll have this equation: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2F5.5=5%2Fx ALIGN=MIDDLE  ALT=\"2%2F5.5=5%2Fx\"   DISABLED_style= \"max-width:90%; height:auto;\" > <---Notice the number of t-shirts are the numerators and the prices are the denominators. Since you mixed these up, you got the wrong answer.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2F5.5=5%2Fx ALIGN=MIDDLE  ALT=\"2%2F5.5=5%2Fx\"   DISABLED_style= \"max-width:90%; height:auto;\" > Start with the given ratio\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282%2F5.5%29%2Ax=5 ALIGN=MIDDLE  ALT=\"%282%2F5.5%29%2Ax=5\"   DISABLED_style= \"max-width:90%; height:auto;\" > Multiply both sides by x\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2Ax=5%2A5.5 ALIGN=MIDDLE  ALT=\"2%2Ax=5%2A5.5\"   DISABLED_style= \"max-width:90%; height:auto;\" > Multiply both sides by 5.5\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2Ax=27.5 ALIGN=MIDDLE  ALT=\"2%2Ax=27.5\"   DISABLED_style= \"max-width:90%; height:auto;\" > Multiply\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=27.5%2F2 ALIGN=MIDDLE  ALT=\"x=27.5%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" > Divide both sides by 2\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=13.75 ALIGN=MIDDLE  ALT=\"x=13.75\"   DISABLED_style= \"max-width:90%; height:auto;\" > Divide \r<BR>\n" );
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document.write( "So <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=%2413.75 ALIGN=MIDDLE  ALT=\"x=%2413.75\"   DISABLED_style= \"max-width:90%; height:auto;\" > which means 5 t-shirts cost $13.75. \r<BR>\n" );
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document.write( "If you think about it, 5 is almost double of 2. So the price of 5 shirts should be close to double of 2 shirts.\r<BR>\n" );
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document.write( "Note: another way you could do this is to multiply the price of one shirt (2.75) by 5 to get\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2.75%2A5=13.75 ALIGN=MIDDLE  ALT=\"2.75%2A5=13.75\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "So this gets you the same answer. </SPAN>\n" );
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