document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1199662>Question 1199662</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A tugboat takes 1 2/3 times as long to go 100 miles upstream along the<BR>\n" );
document.write( " Mississippi River as it does to return. If the speed of the current of the Mississippi River is 2 miles per hour, find the speed of the tugboat in still water. </SPAN>\n" );
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document.write( "Let x be the speed in mph of the tugboat in still water; then its upstream speed is x-2 and its downstream speed is x+2.<br><BR>\n" );
document.write( "The ratio of the downstream and upstream speeds is (1 2/3):1 = 5:3.<br><BR>\n" );
document.write( "The distances (rate times time) are the same, so<br><BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2x=16 ALIGN=MIDDLE  ALT=\"2x=16\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=8 ALIGN=MIDDLE  ALT=\"x=8\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "ANSWER: 8mph<br><BR>\n" );
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