document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=251942>Question 251942</A>: <I><SPAN STYLE=\"word-break: break-all;\"> `Life expectancies at birth for men and women can be modeled by the following <BR>\n" );
document.write( "functions: <BR>\n" );
document.write( "w(x)= 0.126x+76.74<BR>\n" );
document.write( "M(x)= 0.126x+69.11 <BR>\n" );
document.write( " <BR>\n" );
document.write( " \r<BR>\n" );
document.write( "\n" );
document.write( "W(x) represents the life expectancy of women and M(x) represents the life <BR>\n" );
document.write( "expectancy of men. The x represents the years since 1975. (x=0 corresponds to <BR>\n" );
document.write( "the year 1975, x=5 corresponds to 1980, and so on). <BR>\n" );
document.write( "this goes on until 2000<BR>\n" );
document.write( " x is the years since 1975. 1975 0 1985-5 1990-15 1995- 20 2000- 25<BR>\n" );
document.write( "I am not understanding this I also have to figure out on a slope is the life <BR>\n" );
document.write( "expectantcy of men or women increasing more rapidly. then I have to determine <BR>\n" );
document.write( "the birth years in a inequality where the men life expectancy are greater than <BR>\n" );
document.write( "women <BR>\n" );
document.write( "''.Write an inequality to determine the birth years of women whose life expectancy is at least 85. \r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #183692 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=183692\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Life expectancies at birth for men and women can be modeled by the following <BR>\n" );
document.write( "functions: <BR>\n" );
document.write( "w(x)= 0.126x+76.74<BR>\n" );
document.write( "M(x)= 0.126x+69.11 \r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "W(x) represents the life expectancy of women and M(x) represents the life <BR>\n" );
document.write( "expectancy of men. The x represents the years since 1975. (x=0 corresponds to <BR>\n" );
document.write( "the year 1975, x=5 corresponds to 1980, and so on).this goes on until 2000<BR>\n" );
document.write( "x is the years since 1975. 1975 0 1985-5 1990-15 1995- 20 2000- 25<BR>\n" );
document.write( "-----------------------------------\r<BR>\n" );
document.write( "\n" );
document.write( "I am not understanding this. I also have to figure out on a slope; is the life <BR>\n" );
document.write( "expectancy of men or women increasing more rapidly. <BR>\n" );
document.write( "The slopes are the same for men and for women.<BR>\n" );
document.write( "--------------------\r<BR>\n" );
document.write( "\n" );
document.write( "then I have to determine the birth years in a inequality where the men life expectancy are greater than women <BR>\n" );
document.write( "M(x)>W(x)<BR>\n" );
document.write( "0.126x+69.11 >  0.126x+76.74<BR>\n" );
document.write( "When 69.11 > 76.74<BR>\n" );
document.write( "which is never.<BR>\n" );
document.write( "---------------------\r<BR>\n" );
document.write( "\n" );
document.write( "''.Write an inequality to determine the birth years of women whose life expectancy is at least 85.<BR>\n" );
document.write( "---<BR>\n" );
document.write( "0.126x + 76.74 >= 85<BR>\n" );
document.write( "0.126x >= 8.26<BR>\n" );
document.write( "x >= 65.555555<BR>\n" );
document.write( "1975 + 65.555. = 2040.5555<BR>\n" );
document.write( "Rounding up the birth year will be 2041<BR>\n" );
document.write( "==========================================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. <BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );