document.write( "Question 234205: A motorboat can go 14 miles downstream on a river in 20 minutes. It takes 30 minutes for this boat to go back upstream the same 14 miles. Find the speed of the current. \n" ); document.write( "
Algebra.Com's Answer #172746 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! D=RT OR R=D/T \n" ); document.write( "R=14/(1/3) \n" ); document.write( "R=14*3=42 MPH DOWNSTREAM. \n" ); document.write( "R=14/(1/2) \n" ); document.write( "R=14*2/1=28 MPH UPSTREAM. \n" ); document.write( "(42-28)/2=14/2=7 MPH IS THE SPEED OF THE CURRENT. \n" ); document.write( " \n" ); document.write( " |