document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=275780>Question 275780</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The formula R= -0.075t + 3.85 can be used to predict the world record in the 1500 meter run, t years after 1930. Determine an inequality that identifies the years in which the world record will be less than 3.7 minutes. Solve for t. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #201100 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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=201100\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> R= -0.075t + 3.85<BR>\n" );
document.write( "3.7>-.075t+3.85<BR>\n" );
document.write( ".075t>3.85-3.7<BR>\n" );
document.write( ".075t>.15<BR>\n" );
document.write( "t>.15/.075<BR>\n" );
document.write( "t>2 years after 1930 or the year 1932 the record will be 3.7 minutes.<BR>\n" );
document.write( "Proof:<BR>\n" );
document.write( "Let t=2.1.<BR>\n" );
document.write( "3.7>-.075*2.1+3.85<BR>\n" );
document.write( "3.7>-.1575+3.85<BR>\n" );
document.write( "3.7>3.6925<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );