document.write( "Question 40002: A boat can travel from its dock to a town down river with a 7 mile per hour current in 10 hours. The return trip against the same current takes 15 hours. What is the speed of the boat still in the water?
\n" ); document.write( "____ miles per hour
\n" ); document.write( "thanx \n" ); document.write( "
Algebra.Com's Answer #25433 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
A boat can travel from its dock to a town down river with a 7 mile per hour current in 10 hours. The return trip against the same current takes 15 hours. What is the speed of the boat still in the water?
\n" ); document.write( "____ miles per hour\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Down River Data:
\n" ); document.write( "Distance = ?; Time=10 hrs.; Rate= boat speed + 7
\n" ); document.write( "------------------
\n" ); document.write( "Up River Data:
\n" ); document.write( "Distance = ?; Time=15 hrs; Rate = boat speed - 7
\n" ); document.write( "EQUATION:
\n" ); document.write( " distance down = distance up
\n" ); document.write( "and distance = rate(time)
\n" ); document.write( " 10(boat speed +7) = 15(boat speed -7)
\n" ); document.write( " 10boat +70 = 15boat-105
\n" ); document.write( " 5boat=175
\n" ); document.write( " boat=35 mph
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H. \n" ); document.write( "
\n" );