document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1136413>Question 1136413</A>: <I><SPAN STYLE=\"word-break: break-all;\"> For a certain type of computers, the length of time between charges of the battery is normally distributed with a mean of 51.3 hours and a standard deviation of 13.5 hours.\r<BR>\n" );
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document.write( "3% of the computers have a length of time more than k hours.  Find the value of k.<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 #754182 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=754182\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the 97%ile has z=+1.88<BR>\n" );
document.write( "z=(x-mean)/sd<BR>\n" );
document.write( "1.88=(x-51.3)/13.5<BR>\n" );
document.write( "25.38=x-51.3<BR>\n" );
document.write( "x=76.4 hours<BR>\n" );
document.write( "or k=76.4 hours </SPAN>\n" );
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