document.write( "Question 751586: A boat travels 6 miles in 2 hours upstream and 5 miles in 1 hour downstream. Find the speed of the boat and the speed of the current if both speeds are constant. \n" ); document.write( "
Algebra.Com's Answer #457288 by stanbon(75887)\"\" \"About 
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A boat travels 6 miles in 2 hours upstream and 5 miles in 1 hour downstream. Find the speed of the boat and the speed of the current if both speeds are constant.
\n" ); document.write( "Upstream DATA:
\n" ); document.write( "distance = 6 miles ; time = 2 hrs ; rate = 6/2 = 3 mph
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\n" ); document.write( "Downstream DATA:
\n" ); document.write( "distance = 5 miles ; time = 1 hr ; rate = 5/1 = 5 mph
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\n" ); document.write( "Equations:
\n" ); document.write( "b + c = 5 mph
\n" ); document.write( "b - c = 3 mph
\n" ); document.write( "----
\n" ); document.write( "2b = 8
\n" ); document.write( "boat in still water = 4 mph
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\n" ); document.write( "Solve for \"c\":
\n" ); document.write( "b + c = 5
\n" ); document.write( "4 + c = 5
\n" ); document.write( "c = 1 mph (speed of the current)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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