document.write( "Question 54318: Speed of a Boat. A boat travels 26 miles up a river in the same amount of time it takes to travel 34 miles down the same river. If the current is 2 mph, what is the speed of the boat in still water? \n" ); document.write( "
Algebra.Com's Answer #36582 by stanbon(75887)\"\" \"About 
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Speed of a Boat. A boat travels 26 miles up a river in the same amount of time it takes to travel 34 miles down the same river. If the current is 2 mph, what is the speed of the boat in still water?
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\n" ); document.write( "Let the speed of the boat be \"s\".
\n" ); document.write( "Upstream DATA:
\n" ); document.write( "distance=26 miles ; rate = s-2 mph ; time= d/r = 26/(s-2) hrs.
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\n" ); document.write( "Downstream DATA:
\n" ); document.write( "distance = 34 miles; rate = s+2 mph ; time = d/r = 34/(s+2) hrs.
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\n" ); document.write( "EQUATION:
\n" ); document.write( "time up = time down
\n" ); document.write( "34/(s+2) = 26/(s-2)
\n" ); document.write( "34(s-2)=26(s+2)
\n" ); document.write( "34s-68 = 26s+52
\n" ); document.write( "8s = 120
\n" ); document.write( "s= 15 mph
\n" ); document.write( "Speed of the boat in still water is 15 mph
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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