document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=135253>Question 135253</A>: <I><SPAN STYLE=\"word-break: break-all;\"> USE A PROPORTION  TO SOLVE THE PROBLEM ABOUT DIRECT VARIATION.<BR>\n" );
document.write( "A shadow cast by an object on a sunny day varies directly as the height of the object. If a person 61 inches tall casts a shadow 57 inches long, how tall is a tree which casts a shadow 42 feet in length? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #99120 by </B><A HREF=/tutors/aboutme.mpl?userid=solver91311><B>solver91311(24713)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=solver91311><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=solver91311><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=99120\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=61%2F57=x%2F42 ALIGN=MIDDLE  ALT=\"61%2F57=x%2F42\"   DISABLED_style= \"max-width:90%; height:auto;\" >  Since 61 and 57 are both in inches and we can express the height of the tree in the same units, feet, as the shadow of the tree, we don't have to worry about conversion of units.\r<BR>\n" );
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document.write( "The calculator says 44.9 and a bunch more decimal digits, but since your LEAST precise measurement is the length of the tree shadow and that is to the nearest foot, you should express your answer to no greater precision.  Therefore the answer is 45 feet. </SPAN>\n" );
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