document.write( "Question 714924: suppose you are canoeing along a river with a steady current. your average speed upstream is 2.5 mi/h. on the return trip you paddle with the current, and your average speed is 4 mi/h. find the average speed of the current and your average speed if you were paddling in still water
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Algebra.Com's Answer #439108 by mananth(16946)![]() ![]() You can put this solution on YOUR website! speed of canoe in still water = x mph \n" ); document.write( "speed of current = y mph\r \n" ); document.write( "\n" ); document.write( "Upstream speed = x-y =2.5 \n" ); document.write( "downstream speed = x+y = 4\r \n" ); document.write( "\n" ); document.write( "add both equations\r \n" ); document.write( "\n" ); document.write( "2x=6.5 \n" ); document.write( "x= 3.25\r \n" ); document.write( "\n" ); document.write( "y= 3.25 -2.5 = 0.75\r \n" ); document.write( "\n" ); document.write( " speed of canoe in still water = 3.25 mph \n" ); document.write( "speed of current = 0.75 mph\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |