document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=380439>Question 380439</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I hope someone can help me. I do not understand word problems and I need it worked out. Please help me.\r<BR>\n" );
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document.write( "Avoiding a collision. A car is traveling on a road that<BR>\n" );
document.write( "is perpendicular to a railroad track. When the car is<BR>\n" );
document.write( "30 meters from the crossing, the car’s new collision<BR>\n" );
document.write( "detector warns the driver that there is a train 50 meters<BR>\n" );
document.write( "from the car and heading toward the same crossing. How<BR>\n" );
document.write( "far is the train from the crossing?\r<BR>\n" );
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document.write( "Thank you! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #269997 by </B><A HREF=/tutors/aboutme.mpl?userid=richard1234><B>richard1234(7193)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richard1234><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=richard1234><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=269997\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> We see that 30 meters, d meters, and 50 meters form the sides of a right triangle (d is the distance from the train to the crossing) and 50 meters is the hypotenuse.\r<BR>\n" );
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document.write( "If you already know the 3-4-5 triple you can easily conclude that d = 40 meters. Otherwise we can set up the equation using the Pythagorean theorem:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=30%5E2+%2B+d%5E2+=+50%5E2 ALIGN=MIDDLE  ALT=\"30%5E2+%2B+d%5E2+=+50%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%5E2+=+1600 ALIGN=MIDDLE  ALT=\"d%5E2+=+1600\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d+=+40 ALIGN=MIDDLE  ALT=\"d+=+40\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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