document.write( "Question 1076401: Julie and George can row at the same rate in stillwater. They leave Carsten at the same time, Julie is going upstream and George going downstream. Julie rows for 2 hours and arrives in Colton, three miles from Karsten. George rown for 3 hours and arrives at Burnburg, 13.5 miles from Karsten. Find the rate of the current and the rate each rows in stillwater \n" ); document.write( "
Algebra.Com's Answer #691042 by jorel1380(3719) You can put this solution on YOUR website! Let r be the rate they can row in still water, and c be the rate of the current. Then: \n" ); document.write( "2(r-c)=3; \n" ); document.write( "and 3(r+c)=13.5. So: \n" ); document.write( "2r-2c=3 \n" ); document.write( "3r+3c=13.5 \n" ); document.write( "6r-6c=9 \n" ); document.write( "6r+6c=27 \n" ); document.write( "12r=36 \n" ); document.write( "r=3 \n" ); document.write( "c=3/2 \n" ); document.write( "They both row at 3 mph; and the current is 1.5 mph. ☺☺☺☺\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |