document.write( "Question 294029: Determine which, if any, of the three statements are equivalent.
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document.write( "I) If there is no food left on the table, then we have had dinner.
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document.write( "II) If we have had dinner, then there is no food left on the table.
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document.write( "III) If there is food left on the table, then we have not had dinner.\r
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document.write( " I, II, and III are equivalent
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document.write( " I and II are equivalent
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document.write( " II and III are equivalent
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document.write( " I and III are equivalent
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document.write( " None are equivalent
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Algebra.Com's Answer #212131 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! Contrapositives are equivalent. \n" ); document.write( "Switch the arguments and negate both \n" ); document.write( "I If there is no food left on the table, then we have had dinner. \n" ); document.write( ".....If we have not had dinner, then there is food left on the table\r \n" ); document.write( "\n" ); document.write( "II) If we have had dinner, then there is no food left on the table. \n" ); document.write( "III) If there is food left on the table, then we have not had dinner. \n" ); document.write( "II and III are contrapositives and are equivalent. \n" ); document.write( "This was also answered in January \n" ); document.write( "http://www.algebra.com/algebra/homework/word/misc/Miscellaneous_Word_Problems.faq.question.263278.html \n" ); document.write( " |