document.write( "Question 442820: An airplane flies 738 miles against the wind & 1062 miles with the wind in a total time of 9 hours. The speed of the airplane in still air is 200 mi/h. What is the speed of the wind? \n" ); document.write( "
Algebra.Com's Answer #305494 by jorel1380(3719)![]() ![]() You can put this solution on YOUR website! 738/200-x+1062/200+x=9 \n" ); document.write( "738(200+x)+1062(200-x)=9(40000-x2) \n" ); document.write( "147600+738x+212400-1062x=360000-9x2 \n" ); document.write( "9x2-324x=0 \n" ); document.write( "x2-36x=0 \n" ); document.write( "x2=36x \n" ); document.write( "x=36 \n" ); document.write( "The wind speed is 36mph.. \n" ); document.write( " |