document.write( "Question 278371: A plane climbs into the jet stream which is flowing at a rate of 80 miles per hour. It travels with the jet stream for 5 hours and then reduces its altitude, flying out of the jet stream for 4 more hours. The plane, while out of the jet stream, covered 550 miles less than it did during the 5 hours it was in the jet stream. How fast was the plane flying out of the jet stream? \n" ); document.write( "
Algebra.Com's Answer #202626 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "In the jet stream the plane went \n" ); document.write( "5*(j+80) \n" ); document.write( "out of the stream it went 4j\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "5*(j+80)-550=4j \n" ); document.write( "5j+400-550=4j \n" ); document.write( "j=150 mph out of jet stream. \n" ); document.write( "check \n" ); document.write( "5*230-550=600 \n" ); document.write( "1150-550=600 \n" ); document.write( "600=600 \n" ); document.write( "ok \n" ); document.write( "altogether the plane flew 1150+600 =1750 miles in 9 hours. \n" ); document.write( " \n" ); document.write( " |