document.write( "Question 925784: What is: A boat traveled 63 miles downstream and back. The trip downstream took 3 hours. The trip back took 21 hours. What is the speed of the boat still in water? What is the speed of the current?
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Algebra.Com's Answer #561762 by ewatrrr(24785)\"\" \"About 
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r + c = 21mph \"63mi%2F%283hr%29\"
\n" ); document.write( "r - c = 3mph \"63mi%2F%2821hr%29\"
\n" ); document.write( "2r = 24mph
\n" ); document.write( "r = 12mph
\n" ); document.write( "c = 9mph
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