document.write( "Question 359492: one airplane pilot flew 270 miles per hour to her destination. On her return trip, she flew at 360 miles per hour. Her total flying time was 7 hours. How far was it from one airport to another? \n" ); document.write( "
| Algebra.Com's Answer #256508 by mananth(16946)     You can put this solution on YOUR website! time = distance/speed \n" ); document.write( "time forward + time return = total time =7 hours \n" ); document.write( "Let distance be x miles\r \n" ); document.write( "\n" ); document.write( "x/270 + x/360 = 7 hours \n" ); document.write( "360X+270x/(270*360)=7 \n" ); document.write( "630x=7*270*360 \n" ); document.write( "x=7*270*360/630 \n" ); document.write( "x= 1080 miles \n" ); document.write( "... \n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( " |