document.write( "Question 727285: You can travel by boat 8 miles downstream in the same amount of time it takes you to travel 4 miles upstream. What is the speed of the current? \n" ); document.write( "
Algebra.Com's Answer #445040 by josmiceli(19441)\"\" \"About 
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Let \"+c+\" = the speed of the current
\n" ); document.write( "The time, \"+t+\" is the same for both trips
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\n" ); document.write( "The speed going downstream minus the speed of the current
\n" ); document.write( "equals the speed going upstream plus the speed of the current
\n" ); document.write( "\"+8%2Ft++-+c+=+4%2Ft+%2B+c+\"
\n" ); document.write( "\"+2c+=+8%2Ft+-+4%2Ft+\"
\n" ); document.write( "\"+c+=+4%2Ft+-+2%2Ft+\"
\n" ); document.write( "\"+c+=+2%2Ft+\"
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