document.write( "Question 1146667: At Frank's Auto Plaza there are currently 10 new cars, 4 used cars, 12 new trucks, and 5 used trucks. Frank is going to choose one of these vehicles at random to be the Deal of the Month. What is the probability that the vehicle that Frank chooses is used or is a car?\r
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Algebra.Com's Answer #768047 by ikleyn(52787) $\"\"$ $\"About$

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document.write( "The total number of vehicles is 10 + 4 + 12 + 5 = 31.\r\n" );
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document.write( "It is the denominator of the fraction.\r\n" );
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document.write( "The subset \"used\" + \"cars\" has 10 (new cars) + 4 (used cars) + 5 (used trucks) = 19 elements.\r\n" );
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document.write( "It is the numerator of the fraction.\r\n" );
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document.write( "The probability under the question is  .\r\n" );
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