document.write( "Question 1015969: At 10:00 a.m. two planes leave an airport. If the northbound plane flies at 280 mph and the southbound at 320 mph, at what time will they be 1,000 miles apart?\r
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document.write( "Which equation can be used to solve for t, the time it takes the planes to be 1,000 miles apart?\r
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document.write( "A)280t + 320t = 1,000
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document.write( "B)320t - 280t = 1,000
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document.write( "or
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document.write( "C)280 + 320 = 1,000t \n" );
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Algebra.Com's Answer #632362 by FrankM(1040)![]() ![]() You can put this solution on YOUR website! A is correct. \r \n" ); document.write( "\n" ); document.write( "You see why. Time * M/H gives us miles. And the miles add to 1000. \n" ); document.write( " |