document.write( "Question 915883: The speed of a stream is 4 mph. A boat travels 6 miles upstream in the same time it takes to travel 14 miles downstream. What is the speed of the boat in still water? \n" ); document.write( "
Algebra.Com's Answer #555804 by stanbon(75887)\"\" \"About 
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The speed of a stream is 4 mph. A boat travels 6 miles upstream in the same time it takes to travel 14 miles downstream. What is the speed of the boat in still water?
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\n" ); document.write( "Upstream DATA:
\n" ); document.write( "distance = 6 miles ; time = x hrs ; rate = 6/x mph
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\n" ); document.write( "Downstream DATA:
\n" ); document.write( "distance = 14 miles ; time = x hrs; rate = 14/x mph
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\n" ); document.write( "Equation:
\n" ); document.write( "b -4 = 6/x
\n" ); document.write( "b +4 = 14/x
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\n" ); document.write( "Subtract to solve for \"x\"::
\n" ); document.write( "8 = 8/x
\n" ); document.write( "x = 1 hr
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\n" ); document.write( "Equations:
\n" ); document.write( "b - 4 = 6/x = 6
\n" ); document.write( "b + 4 = 14/x = 14
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\n" ); document.write( "b = 10 mph (speed of the boat in still water)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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