document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=988739>Question 988739</A>: <I><SPAN STYLE=\"word-break: break-all;\">  Kiran drove from Tortula to Cactus, a distance of 282 mi. She increased her speed by 9 mi/h for the 392 mi trip from Cactus to Dry Junction. If the total trip took 13 h, what was her speed from Tortula to Cactus?\r<BR>\n" );
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document.write( "I am coming up with an answer of something like 557 plus or minus 23 times square root of 337 all over 26. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #609212 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=609212\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Kiran drove from Tortula to Cactus, a distance of 282 mi. She increased her speed by 9 mi/h for the 392 mi trip from Cactus to Dry Junction. If the total trip took 13 h, what was her speed from Tortula to Cactus? <BR>\n" );
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document.write( "T to C DATA:<BR>\n" );
document.write( "distance = 282 mi  : rate = r mph ; time = d/r = 282/r hours<BR>\n" );
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document.write( "C to D DATA:<BR>\n" );
document.write( "dist = 392 mi ; rate = r+9 mph ; time = 392/(r+9) hr<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "time + time = 13<BR>\n" );
document.write( "282/r + 392(r+9) = 13<BR>\n" );
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document.write( "282r + 282*9 + 392r = 13r(r+9)<BR>\n" );
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document.write( "674r + 2538 = 13r^2 + 117r<BR>\n" );
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document.write( "13r^2 - 557r - 2538 = 0<BR>\n" );
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document.write( "Ans: r = 47 mph (rate from T to C)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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