document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=56974>Question 56974</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Sound travels 5400 feet in 5 seconds.  A streak of lightning hits in the distance and edward hears it crash 80 second later.  Using the estimate given, how many miles from Edward did the lightning crash?  Express your answer as a mixed number.  Solve and explain your answer </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #39139 by </B><A HREF=/tutors/aboutme.mpl?userid=funmath><B>funmath(2933)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=funmath><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=39139\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Sound travels 5400 feet in 5 seconds.  A streak of lightning hits in the distance and edward hears it crash 80 second later.  Using the estimate given, how many miles from Edward did the lightning crash?  Express your answer as a mixed number.  Solve and explain your answer<BR>\n" );
document.write( "The speed of sound is: (5400 ft)/(5 s)=1080 ft/s<BR>\n" );
document.write( "The formula for distance is: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28d=rt%29 ALIGN=MIDDLE  ALT=\"highlight%28d=rt%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, where d=distance, r=rate(or speed), t=time<BR>\n" );
document.write( "Given:<BR>\n" );
document.write( "r=1080 ft/s<BR>\n" );
document.write( "t=80 s<BR>\n" );
document.write( "The distance that Edward is from the lightning is:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d=%281080ft%2Fs%29%2880s%29 ALIGN=MIDDLE  ALT=\"d=%281080ft%2Fs%29%2880s%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d=%281080ft%2Fcross%28s%29%29%2880%2Across%28s%29%29 ALIGN=MIDDLE  ALT=\"d=%281080ft%2Fcross%28s%29%29%2880%2Across%28s%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d=86400ft ALIGN=MIDDLE  ALT=\"d=86400ft\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Unfortunately, you need to know how many miles that is.  There are 5,280 ft in a mile.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d=%2886400ft%29%281mi%2F%285280ft%29%29 ALIGN=MIDDLE  ALT=\"d=%2886400ft%29%281mi%2F%285280ft%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d=86400%2Across%28ft%29%281mi%2F%285280%2Across%28ft%29%29%29 ALIGN=MIDDLE  ALT=\"d=86400%2Across%28ft%29%281mi%2F%285280%2Across%28ft%29%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d=%28180%2F11%29mi ALIGN=MIDDLE  ALT=\"d=%28180%2F11%29mi\"   DISABLED_style= \"max-width:90%; height:auto;\" >  We have to express this as a mixed number, so:<BR>\n" );
document.write( "d=16 4/11 mi<BR>\n" );
document.write( "There's a lot of places to mess this up, double check everything.<BR>\n" );
document.write( "Happy Calculating!!!<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );