document.write( "Question 26884: The Hudson River flows at a rate of 3 miles per hour. A patrol boat travels 60 miles upriver, and returns in a total time of 9 hours. What is the speed of the boat in still water?\r
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document.write( "Can you please help me?! This is due soon and I've been racking my brain at it and still can't get it..... \n" );
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Algebra.Com's Answer #14645 by Paul(988)![]() ![]() ![]() You can put this solution on YOUR website! Since its total time of 9 hours you knwo that its first speed + the second. \n" ); document.write( " \n" ); document.write( "60[(x+3)+(x-3)]=9[(x+3)(x-3)] \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "Use the quadratic formula and simplfy you get \n" ); document.write( "x=13.9777... \n" ); document.write( "Round it out \n" ); document.write( "Hence, the speed of the boat is 14mph in still water. \n" ); document.write( "Paul. \n" ); document.write( " |