document.write( "Question 633217: A tugboat goes 140 miles upstream in 10 hours. The return trip downstream takes 5 hours. What is the speed of the tugboat with out a current and what is the speed of the current?\r
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Algebra.Com's Answer #398741 by ewatrrr(24785)\"\" \"About 
You can put this solution on YOUR website!
 
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\n" ); document.write( "Note: D = rt OR r = D/t
\n" ); document.write( " r - c = 14 = \"140mi%2F10hr\"
\n" ); document.write( " r + c = 28 = \"140mi%2F5hr\"
\n" ); document.write( " 2r = 42
\n" ); document.write( " r = 21 and c = 7 \"21+%2B+c+=+28\"
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