document.write( "Question 229358: Please help me solve the following motion problem.
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document.write( "In the Mississippi River near New Orleans, the Creole Queen paddleboat travels 6 miles upstream (against the current) in the same amount of time it travels 12 miles downstream (with the current). If the current of the river is 3 miles per hour, determine the speed of the Creole Queen in still water.\r
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document.write( "I came up with 1 mile per hour. I checked and it is not the correct answer. I made a table for RT=D but I did not understand where to plug in the figures given. \n" );
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Algebra.Com's Answer #170084 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! D=RT OR T=D/R \n" ); document.write( "T=6/(R-3) \n" ); document.write( "T=12/(R+3) \n" ); document.write( "6/(R-3)=12/(R+3) \n" ); document.write( "12(R-3)=6(R+3) \n" ); document.write( "12R-36=6R+18 \n" ); document.write( "12R-6R=18+36 \n" ); document.write( "6R=54 \n" ); document.write( "R=54/6 \n" ); document.write( "R=9 MPH. IS THE SPEED OF THE BOAT IN STILL WATER. \n" ); document.write( "PROOF: \n" ); document.write( "6/(9-3)=12/(9+3) \n" ); document.write( "6/6=12/12 \n" ); document.write( "1=1 \n" ); document.write( " \n" ); document.write( " |