document.write( "Question 29569: The speed of a boat in still water is 16 mph. The boat traveled the same distance downstream in 9 minutes that it traveled upstream in 15 minutes. Find the speed of the current.
\n" ); document.write( "Mary
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Algebra.Com's Answer #16343 by Paul(988)\"\" \"About 
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Let the speed of the current be x\r
\n" ); document.write( "\n" ); document.write( "9 minutes = 0.15hours
\n" ); document.write( "15 minutes = 0.25 hors
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\n" ); document.write( "\n" ); document.write( "0.15(16+x)=0.25(15-x)
\n" ); document.write( "2.4+0.15x=4-0.25x
\n" ); document.write( "-1.6=-0.4x
\n" ); document.write( "x=4\r
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\n" ); document.write( "\n" ); document.write( " Hence, the speed of the current is 4mph.
\n" ); document.write( "Paul.
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