document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=214890>Question 214890</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me this word problem: Kevin drove 320 miles to a mountain resort. His return trip took 20 minutes longer because his speed returning was 4 mi/h slower than his speed going. \r<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 #162341 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=162341\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> D=RT<BR>\n" );
document.write( "320=RT OR R=320/T<BR>\n" );
document.write( "320=(R-4)(T+1/3)<BR>\n" );
document.write( "320=(320/T-4)(T+1/3)<BR>\n" );
document.write( "320=320-4T+320/3T-4/3<BR>\n" );
document.write( "-4T+320/3T-4/3=0<BR>\n" );
document.write( "(-4T*3T+320-4T)/3T=0<BR>\n" );
document.write( "(-12T^2+320-4T)/3T=0<BR>\n" );
document.write( "12T^2+4T-320=0<BR>\n" );
document.write( "4(3T^2+T-80)=0<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=T+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+ ALIGN=MIDDLE  ALT=\"T+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "T=(-1+-SQRT[1^1-4*3*-80])/2*3<BR>\n" );
document.write( "T=(-1+-SQRT[1+960])/6<BR>\n" );
document.write( "T=(-1+-SQRT961)/6<BR>\n" );
document.write( "T=(-1+-31)/6<BR>\n" );
document.write( "T=-32/3=-5.333<BR>\n" );
document.write( "T=(-1+31)/6<BR>\n" );
document.write( "T=30/6<BR>\n" );
document.write( "T=5 HRS. GOING.<BR>\n" );
document.write( "PROOF;<BR>\n" );
document.write( "320=R*5<BR>\n" );
document.write( "R=320/5<BR>\n" );
document.write( "R=64 MPH. GOING<BR>\n" );
document.write( "320=(64-4)(5+1/3)<BR>\n" );
document.write( "320=60*16/3<BR>\n" );
document.write( "320=960/3<BR>\n" );
document.write( "960=960<BR>\n" );
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