document.write( "Question 176004: Flying against the jetstream, a jet travels 2920km in 4 hours. Flying with the jetstream, the same jet travels 7630km in 7 hours. What is the speed of the jet in still air, and what is the speed of the jetstream?
\n" );
document.write( " \n" );
document.write( "
Algebra.Com's Answer #131132 by checkley75(3666)![]() ![]() ![]() You can put this solution on YOUR website! D=RT \n" ); document.write( "2920=R*4 \n" ); document.write( "R=2920/4 \n" ); document.write( "R=730 KMH AGAINST THE JETSTREAM. \n" ); document.write( "7630=5*7 \n" ); document.write( "R=7630/7 \n" ); document.write( "R=1090 KMH QITH THE JETSTREAM. \n" ); document.write( "(1090-730)/2=360/2=180 KMH IS THE SPEED OF THE JETSTREAM. \n" ); document.write( "Proof: \n" ); document.write( "730+180=910 speed of the jet in still air \n" ); document.write( "1090-180=910 ditto. \n" ); document.write( " \n" ); document.write( " |