document.write( "Question 1074147: Mike is three times as old as his little sister mary. in four years, he will be twice as old as mary. how old is mary?
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Algebra.Com's Answer #688883 by jorel1380(3719)\"\" \"About 
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Let m represent marys' age. Then Mike would be 3m. So:
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\n" ); document.write( "Mary is 4; Mike is 12. ☺☺☺☺
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