document.write( "Question 431388: A boat moves 7 km upstream in the same amount of time it moves 20 km downstream.
\n" ); document.write( "if the rate of the current is 6 km per hour, find the rate of the boat in still water. \n" ); document.write( "

Algebra.Com's Answer #299390 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi
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document.write( "Let x represent the rate of the boat in still water.
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document.write( "Question states***  Note t = D/r (times the same)
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document.write( "    | Cross Multiplying 
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document.write( "  7(x+6) = 20(x-6)
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document.write( "    162 = 13x
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document.write( "     x = 12.4615kmph
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document.write( "CHECKING our Answer***
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document.write( "  7/6.4615 = 20/18.4615 = 1.0833 \n" );
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