document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1014037>Question 1014037</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A census study shows that the population from 1990 to 1998 of the only large town in a certain county can be modeled by the formula 102t2 - 225t + 3090 where t = 0 represents the year 1990 and that over the same years, the population of the surrounding county (not including the town) can be modeled by the formula 125t2 + 72t + 4978 where t = 0 represents the year 1990. Find a model for the total population of the county during the years 1990 to 1997.<BR>\n" );
document.write( "Thank you in advance for any help!<BR>\n" );
document.write( "Daniel H. Jack </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #630392 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=630392\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I think you just add the equations and<BR>\n" );
document.write( "set <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t+=+7+ ALIGN=MIDDLE  ALT=\"+t+=+7+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+102t%5E2+%2B+125t%5E2+-+225t+%2B+72t+%2B+3090+%2B+4978+ ALIGN=MIDDLE  ALT=\"+102t%5E2+%2B+125t%5E2+-+225t+%2B+72t+%2B+3090+%2B+4978+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+227t%5E2+-+153t+%2B+8068+ ALIGN=MIDDLE  ALT=\"+227t%5E2+-+153t+%2B+8068+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Use the quadratic formula to solve for <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t+ ALIGN=MIDDLE  ALT=\"+t+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Hope I got it<BR>\n" );
document.write( "  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );