document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=907689>Question 907689</A>: <I><SPAN STYLE=\"word-break: break-all;\"> <-W----X------Y--------Z->\r<BR>\n" );
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document.write( "In the figure above, if WX/XY=5/7, XY/YZ=7/9, and YZ=18, How long is WZ?<BR>\n" );
document.write( "a.7<BR>\n" );
document.write( "b.10<BR>\n" );
document.write( "c.24<BR>\n" );
document.write( "d.32<BR>\n" );
document.write( "e.42 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #550495 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=550495\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "YZ = 18 ... given\r<BR>\n" );
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document.write( "XY/YZ=7/9 ... given\r<BR>\n" );
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document.write( "XY/18=7/9 ... plug in YZ = 18\r<BR>\n" );
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document.write( "XY=18*(7/9) ... Multiply both sides by 18.\r<BR>\n" );
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document.write( "XY = 14 ... multiply and simplify\r<BR>\n" );
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document.write( "-----------------\r<BR>\n" );
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document.write( "WX/XY=5/7 ... given\r<BR>\n" );
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document.write( "WX/14=5/7 ... plug in XY = 14\r<BR>\n" );
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document.write( "WX=14*(5/7) ... Multiply both sides by X.\r<BR>\n" );
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document.write( "WX = 10 ... Multiply\r<BR>\n" );
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document.write( "------------------\r<BR>\n" );
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document.write( "Summary so far:\r<BR>\n" );
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document.write( "YZ = 18<BR>\n" );
document.write( "XY = 14<BR>\n" );
document.write( "WX = 10\r<BR>\n" );
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document.write( "------------------\r<BR>\n" );
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document.write( "Use those values above to find WZ\r<BR>\n" );
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document.write( "WZ = WX + XY + YZ ... segment addition postulate\r<BR>\n" );
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document.write( "WZ = 10 + 14 + 18 ... substitution\r<BR>\n" );
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document.write( "WZ = 42 ... substitution\r<BR>\n" );
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document.write( "So the final answer is <font color=\"red\">e.42</font> </SPAN>\n" );
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