document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=541108>Question 541108</A>: <I><SPAN STYLE=\"word-break: break-all;\"> At noon, two Mississippi stream boats are 126 miles apart. At 6 p.m., they pass each other going in opposite directions. If one stream boat travels 9 miles per hour faster than the other, find the speed of both boats. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #354055 by </B><A HREF=/tutors/aboutme.mpl?userid=oberobic><B>oberobic(2304)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=oberobic><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=354055\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The boats are converging at the sum of their speeds.<BR>\n" );
document.write( "Boat 1 is going at speed = x<BR>\n" );
document.write( "Boat 2 is going at speed = x+9<BR>\n" );
document.write( "In 6 hrs (noon to 6 p.m.) they travel 126 miles.<BR>\n" );
document.write( "d = r*t<BR>\n" );
document.write( "126 = r * 6<BR>\n" );
document.write( "r = 126/6 = 21<BR>\n" );
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document.write( "Their combined speeds are x+x+9 = 2x+9<BR>\n" );
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document.write( "2x+9 = 21<BR>\n" );
document.write( "2x = 12<BR>\n" );
document.write( "x = 6 mph = speed of the slower boat<BR>\n" );
document.write( "x+9 = 15 mph = speed of the faster boat<BR>\n" );
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document.write( "To check, how far does each travel in 6 hr?<BR>\n" );
document.write( "6*6 = 36<BR>\n" );
document.write( "6*15 = 90<BR>\n" );
document.write( "36+90 = 126<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Done. </SPAN>\n" );
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