document.write( "Question 1140034: Alma rows a boat downstream for 130 miles. The return trip upstream took 16 hours longer. If the current flows at 4 mph, how fast does Alma row in still water? \n" ); document.write( "

Algebra.Com's Answer #760485 by ikleyn(52908) $\"\"$ $\"About$

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document.write( "Let x be the Alma's rowing speed in still water.\r\n" );
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document.write( "Then the speed downstream is (x+4) mph, and the speed upstream is  (x-4) mph.\r\n" );
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document.write( "The time downstream  is   hours; the time upstream is   hours.\r\n" );
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document.write( "The \"time\" equation is\r\n" );
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document.write( " -  = 16   hours.\r\n" );
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document.write( "Solve it for x and get the answer.\r\n" );
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