document.write( "Question 1145946:
\n" ); document.write( "A boat traveled downstream a distance of 90 mi and then came right back. If the speed of the current was 20 mph and the total trip took 6 hourscomma nbspfind the average speed of the boat relative to the water.
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Algebra.Com's Answer #767239 by ikleyn(52786)\"\" \"About 
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\n" ); document.write( "A boat traveled downstream a distance of 90 mi and then came right back. If the speed of the current was 20 mph
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\n" ); document.write( "\n" ); document.write( "With the speed of the current of 20 mph,  it is a mountain river.  Something like a waterfall.\r
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\n" ); document.write( "\n" ); document.write( "I do not think that boats are able to travel  \"upstream\"  and even  \"downstream\"  in such a river. \r
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\n" ); document.write( "\n" ); document.write( "If downstream,  then only once,  after which case a boat becomes a  \"scrap metal\"  (if it was made of metal).\r
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\n" ); document.write( "\n" ); document.write( "To get some knowledge on the subject,  look into this web-site\r
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\n" ); document.write( "\n" ); document.write( "https://hypertextbook.com/facts/2006/NervanaGaballa.shtml\r
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\n" ); document.write( "\n" ); document.write( "Avoid travel at such dangerous conditions (!)\r
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