document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=720112>Question 720112</A>: <I><SPAN STYLE=\"word-break: break-all;\"> This is a word problem from a chapter on Quadratic Equations.\r<BR>\n" );
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document.write( "The speed of a boat in still water is 10km/hour. The boat travels upstream 24km and 24km downstream in a total time of 5 hours. What is the speed of the stream?\r<BR>\n" );
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document.write( "I know how to solve quadratic equations, so I mainly need to know how to set the problem up, because that's the part that really confuses me. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #441669 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39618)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=441669\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Speed of the stream, c for \"current\".  You may choose another variable instead.\r<BR>\n" );
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document.write( "Direction_________speed_____________time______________distance<BR>\n" );
document.write( "Upsteam___________10-c______________(___)_____________24<BR>\n" );
document.write( "Downstream________10+c______________(___)_____________24<BR>\n" );
document.write( "TOTAL_________________________________5_______________48\r<BR>\n" );
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document.write( "Time information has not been filled, so we use speed*time=distance basic fact to find expressions for time in each direction.\r<BR>\n" );
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document.write( "Direction_________speed_____________time______________distance<BR>\n" );
document.write( "Upsteam___________<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10-c ALIGN=MIDDLE  ALT=\"10-c\"   DISABLED_style= \"max-width:90%; height:auto;\" >__________<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2824%2F%2810-c%29%29 ALIGN=MIDDLE  ALT=\"%2824%2F%2810-c%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >_____________24<BR>\n" );
document.write( "Downstream________<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10%2Bc ALIGN=MIDDLE  ALT=\"10%2Bc\"   DISABLED_style= \"max-width:90%; height:auto;\" >__________<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2824%2F%2810%2Bc%29%29 ALIGN=MIDDLE  ALT=\"%2824%2F%2810%2Bc%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >_____________24<BR>\n" );
document.write( "TOTAL_____________________________5_________________48\r<BR>\n" );
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document.write( "The sum of the times equaling 5 hours will give you the equation to solve for the stream's speed, c.  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%2824%2F%2810-c%29%2B24%2F%2810%2Bc%29=5%29 ALIGN=MIDDLE  ALT=\"highlight%2824%2F%2810-c%29%2B24%2F%2810%2Bc%29=5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >. </SPAN>\n" );
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