document.write( "Question 764839: A boat traveled for 2 hr with a 12 mph current to reach a picnic area. the return trip against the same current took 6 hr. Find the speed of the boat in still water \n" ); document.write( "
Algebra.Com's Answer #465802 by Cromlix(4381)![]() ![]() You can put this solution on YOUR website! Speed of boat in still water = x \n" ); document.write( "2hrs * (x + 12mph) = 6hrs * (x - 12) \n" ); document.write( " 2x + 24 = 6x - 72 \n" ); document.write( " 2x - 6x = - 72 - \n" ); document.write( " - 4x = - 96 \n" ); document.write( " x = 24 \n" ); document.write( "Speed of boat in still water = 24mph \n" ); document.write( "Proof: \n" ); document.write( "2x + 24 = 6x - 72 \n" ); document.write( "2(24) + 24 = 6(24) - 72 \n" ); document.write( " 72 = 72 \n" ); document.write( "Hope this helps. \n" ); document.write( ":-) \n" ); document.write( " \n" ); document.write( " |