document.write( "Question 457504: A grain barge travels on a river from point A to point B loading and unloading grain. A grain barge travels on a river from point A to point B loading and unloading grain. The barge travels at a rate of 4 mph relative to the water. The river flows downstream at a rate of 1 mph. If the trip upstream takes 2 hours longer than the trip downstream, how far is it from point A to point B? \n" ); document.write( "
Algebra.Com's Answer #313902 by stanbon(75887)\"\" \"About 
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A grain barge travels on a river from point A to point B loading and unloading grain.
\n" ); document.write( "The barge travels at a rate of 4 mph relative to the water. The river flows downstream at a rate of 1 mph.
\n" ); document.write( "If the trip upstream takes 2 hours longer than the trip downstream,
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\n" ); document.write( "How far is it from point A to point B?
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\n" ); document.write( "Downstream DATA:
\n" ); document.write( "time = x hrs ; rate = 4+1 mph ; distance = t*r = 5x miles
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\n" ); document.write( "Upstream DATA:
\n" ); document.write( "time = x+2 hrs ; rate = 4-1 mph; distance = t*r = 3(x+2)
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\n" ); document.write( "Equation:
\n" ); document.write( "distance = distance
\n" ); document.write( "5x = 3(x+2)
\n" ); document.write( "5x = 3x+6
\n" ); document.write( "2x = 6
\n" ); document.write( "x = 3 hrs
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\n" ); document.write( "Distance = 5x = 15 miles from A to B
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.\r
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