document.write( "Question 830075: the average of 3 numbers is 89 if the first is 69 and the second is 124 what is the third number.\r
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Algebra.Com's Answer #500325 by Alan3354(69443)\"\" \"About 
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the average of 3 numbers is 89 if the first is 69 and the second is 124 what is the third number.
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\n" ); document.write( "avg = (n1 + n2 + n3)/3
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