document.write( "Question 957182: A cruise ship can sail 25 mph in calm water. Sailing with the Gulf Stream, the ship can sail 256 mi in the same amount of time it takes to sail 144 mi against the Gulf Stream. Find the rate of the Gulf Stream. \n" ); document.write( "
Algebra.Com's Answer #584829 by lwsshak3(11628)\"\" \"About 
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A cruise ship can sail 25 mph in calm water. Sailing with the Gulf Stream, the ship can sail 256 mi in the same amount of time it takes to sail 144 mi against the Gulf Stream. Find the rate of the Gulf Stream.
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\n" ); document.write( "let c=rate of gulf stream
\n" ); document.write( "25+c=rate of ship sailing with Gulf Stream
\n" ); document.write( "25-c=rate of ship sailing against Gulf Stream
\n" ); document.write( "travel time=distance/rate (same in both directions)
\n" ); document.write( "...
\n" ); document.write( "\"256%2F%2825%2Bc%29=144%2F%2825-c%29\"
\n" ); document.write( "256(25-c)=144(25+c)
\n" ); document.write( "6400-256c=3600-144c
\n" ); document.write( "112c=2800
\n" ); document.write( "c=25
\n" ); document.write( "rate of gulf stream=25 mph
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