document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1026592>Question 1026592</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Kristina went on a 260 mile trip to a soccer game. On the way back, due to road construction she had to drive 13 miles per hour slower. This made the trip take 1 hour longer. How fast did she drive to the soccer game?\r<BR>\n" );
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document.write( "She drove how many mph on her way to the soccer game? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #641852 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=641852\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Kristina went on a 260 mile trip to a soccer game. On the way back, due to road construction she had to drive 13 miles per hour slower. This made the trip take 1 hour longer. How fast did she drive to the soccer game? <BR>\n" );
document.write( "She drove how many mph on her way to the soccer game? <BR>\n" );
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document.write( "To the game DATA:<BR>\n" );
document.write( "dist = 260 miles: rate = r mph ; time = 260/r hrs.<BR>\n" );
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document.write( "From game DATA:<BR>\n" );
document.write( "dist = 260: rate = r-13 mph ; time = 260/(r-13) hrs<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "from time - go time = 1 hr<BR>\n" );
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document.write( "260/(r-13) - 260/r = 1 hr<BR>\n" );
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document.write( "260r - 260r + 13*260 = r(r-13)<BR>\n" );
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document.write( "r^2 - 13r - 13*260 = 0<BR>\n" );
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document.write( "(r-65)(r+52) = 0<BR>\n" );
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document.write( "Positive solution:: rate = 65 mph<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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