document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=645842>Question 645842</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How do i know when to devide and when to mutiply to find missing vsriables </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #405646 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=405646\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> How do i know when to devide and when to mutiply to find missing vsriables<BR>\n" );
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document.write( "It often helps to include units in the calculations.<BR>\n" );
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document.write( "A simple example:<BR>\n" );
document.write( "convert 4 feet to inches<BR>\n" );
document.write( "1 ft = 12 inches --> inch/ft = 12 & ft/inch = 1/12<BR>\n" );
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document.write( "4 ft * 12 (in/ft) = 48 ft*in/ft<BR>\n" );
document.write( "The feet cancel --> 48 inches<BR>\n" );
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document.write( "If you do it wrong:<BR>\n" );
document.write( "4 ft * 1ft/12 inch = 1/3 ft*ft/inch<BR>\n" );
document.write( "The units are not right, so you know you did the wrong operation. </SPAN>\n" );
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