document.write( "Question 1093796: Jane took \r
\n" );
document.write( "\n" );
document.write( "15 min to drive her boat upstream to water-ski at her favorite spot. Coming back later in the day, at the same boat speed, took her \r
\n" );
document.write( "\n" );
document.write( "5 min. If the current in that part of the river is \r
\n" );
document.write( "\n" );
document.write( "2 km per hr, what was her boat speed in still water? \n" );
document.write( "
Algebra.Com's Answer #708416 by greenestamps(13200)![]() ![]() You can put this solution on YOUR website! So many different ways to solve the same problem....! \n" ); document.write( "Here is what I would do. \n" ); document.write( "The trip took 3 times as long going upstream as downstream. That means her downstream speed must be 3 times her upstream speed. \n" ); document.write( "If b is the speed of her boat in still water, then her upstream speed is b-2 and her downstream speed is b+2. So \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " |