document.write( "Question 933931: The speed of a stream is 6 mph. If a boat travels 74 miles downstream in the same to time that it takes to travel 37 miles up stream, what is the speed of the boat in still water? \n" ); document.write( "
Algebra.Com's Answer #567116 by stanbon(75887)\"\" \"About 
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The speed of a stream is 6 mph. If a boat travels 74 miles downstream in the same time that it takes to travel 37 miles up stream, what is the speed of the boat in still water?
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\n" ); document.write( "Downstream DATA:
\n" ); document.write( "dist = 74 miles ; rate = b+6; time = 74/(b+6)
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\n" ); document.write( "Upstream DATA:
\n" ); document.write( "dist = 37 miles ; rate = b-6 ; time = 37/(b-6)
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\n" ); document.write( "Equation:
\n" ); document.write( "74/(b+6) = 37/(b-6)
\n" ); document.write( "74b - 6*74 = 37b + 6*37
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\n" ); document.write( "37b = 6(37+74)
\n" ); document.write( "37b = 666
\n" ); document.write( "boat speed = 666/37 = 18 mph
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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