document.write( "Question 820939: a motorboat traveled downstream in 1.5 hours with a 3 miles per hour current. ON the way back against the same current the trip took 2 hours. How fast was the boat traveling in still water? \n" ); document.write( "

Algebra.Com's Answer #493773 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
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document.write( "Hi,
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document.write( "a motorboat traveled downstream in 1.5 hours with a 3 miles per hour current.  ON the way back against the same current the trip took 2 hours.
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document.write( "How fast was the boat traveling in still water?
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document.write( "D = rt, Distance Down and Back the same
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document.write( "   ***
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document.write( "            3.5hr(3mph) = .5r
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document.write( "                  21mph = r
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document.write( "CHECKING our answer***
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document.write( "     24mph(1.5hr) = 36mi =  18mph(2hr) =  \n" );
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