document.write( "Question 88697: At 10:00 a.m. planes leave an airport. If the northbound plane flies at 280 mph and the southbound at 320mph, at what time will they be 1,000 miles apart? \n" ); document.write( "
Algebra.Com's Answer #64463 by checkley75(3666)![]() ![]() ![]() You can put this solution on YOUR website! 280T+320T=1000 \n" ); document.write( "600T=1000 \n" ); document.write( "T=1000/600 \n" ); document.write( "T=1 2/3 HOURS THEY WILL BE 1000 MILES APART OR @ 11:40 AM. \n" ); document.write( " |