document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=39377>Question 39377</A>: <I><SPAN STYLE=\"word-break: break-all;\"> After 2 minutes on a treadmill, Jenny has a heart rate of 82. After 3 minutes  she has a heart rate of 86. Assume that there is a linear equation that gives her heart rate h in terms of time on the treadmill t. Find the equation and use it to predict her heart tate after 10 minutes on the treadmill. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #24810 by </B><A HREF=/tutors/aboutme.mpl?userid=venugopalramana><B>venugopalramana(3286)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=venugopalramana><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.geocities.com/venugopalramana/FREE_MATHS_ASSISTANCE.html valign=middle><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=24810\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> After 2 minutes( T SAY ) on a treadmill, Jenny has a heart rate (H SAY )of 82. After 3 minutes she has a heart rate of 86. Assume that there is a linear equation that gives her heart rate h in terms of time on the treadmill t. Find the equation and use it to predict her heart tate after 10 minutes on the treadmill.<BR>\n" );
document.write( "LET H=AT+B<BR>\n" );
document.write( "WE HAVE FOR T=2,H=82...SO<BR>\n" );
document.write( "82=2A+B.................................I<BR>\n" );
document.write( "FOR T=3,H=86...SO<BR>\n" );
document.write( "86=3A+B...............................II<BR>\n" );
document.write( "EQN.II-EQN.I...<BR>\n" );
document.write( "A=4...SUBSTITUTING IN EQN.I..<BR>\n" );
document.write( "2*4+B=82<BR>\n" );
document.write( "B=74<BR>\n" );
document.write( "SO EQN.IS <BR>\n" );
document.write( "H=4A+74<BR>\n" );
document.write( "FOR T=10<BR>\n" );
document.write( "H=4*10+74=114 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );