document.write( "Question 398820: A plane on a search mission flew east from an airport, turned, and flew west back to the airport. the plance cruised at 300 km/h when byling east, and 400 km/h when flying west. the plane was in the air for 7 hours. how far from the airport did the plane travel? \n" ); document.write( "
Algebra.Com's Answer #282542 by ankor@dixie-net.com(22740) You can put this solution on YOUR website! A plane on a search mission flew east from an airport, turned, and flew west back to the airport. \n" ); document.write( " the plane cruised at 300 km/h when byling east, and 400 km/h when flying west. \n" ); document.write( " the plane was in the air for 7 hours. how far from the airport did the plane travel? \n" ); document.write( ": \n" ); document.write( "let d = distance he flew from the airport \n" ); document.write( ": \n" ); document.write( "Write a time equation: Time = dist/speed \n" ); document.write( ": \n" ); document.write( " \n" ); document.write( "Multiply by 1200 to get rid of the denominators \n" ); document.write( "1200* \n" ); document.write( "4d + 3d = 8400 \n" ); document.write( "7d = 8400 \n" ); document.write( "d = \n" ); document.write( "d = 1200 miles \n" ); document.write( " \n" ); document.write( " |