document.write( "Question 357712: Airplane Speed:
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document.write( "Two planes start from the same airport and fly in opposite directions. The second plane starts 1/2 hour after the first plane, but its speed is 80 kilometers per hour faster. Find the groundspeed of each plane if 2 hours after the first plane departs the planes are 3200 kilometers apart.\r
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document.write( "I am assuming that the distance = rate x time equation will be used, but I am lost. \n" );
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Algebra.Com's Answer #255360 by scott8148(6628)![]() ![]() You can put this solution on YOUR website! you know the times ; and the speeds in relation to each other \n" ); document.write( "___ the distances sum to 3200\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "(x)(2) + (x + 80)(2 - .5) = 3200 \n" ); document.write( " |