document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=273868>Question 273868</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Two poles, 30 feet and 50 feet tall, are 40 feet apart and perpendicular to the ground. The poles are supported by wires attached from the top of each pole to the bottom of the other, as in the figure. A coupling is placed at C where the tow wires cross.\r<BR>\n" );
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document.write( "Find x, the distance from C to the taller pole?\r<BR>\n" );
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document.write( "How high above the ground is the coupling?\r<BR>\n" );
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document.write( "How far down the wire from the smaller pole is the coupling?\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #200009 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=200009\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> picture the taller pole standing at the origin and running up the y-axis\r<BR>\n" );
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document.write( "the shorter pole is standing 40 ft out on the x-axis\r<BR>\n" );
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document.write( "the equation of the wire from the top of the taller pole to the bottom of the shorter pole is ___ y = (-5/4)x + 50\r<BR>\n" );
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document.write( "the equation of the other wire is ___ y = (3/4)x\r<BR>\n" );
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document.write( "substituting ___ (3/4)x = (-5/4)x + 50 ___ x = 25\r<BR>\n" );
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document.write( "substituting ___ y = (3/4)25 = 75/4 = 18.75\r<BR>\n" );
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document.write( "C is 18.75 ft off the ground and 25 ft from the taller pole\r<BR>\n" );
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document.write( "leaving the third part for you to find\r<BR>\n" );
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document.write( "*BIG HINT* ___ 3 - 4 - 5 TRIANGLE </SPAN>\n" );
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