document.write( "Question 1190443: Ashley estimates that there are a marbles in a jar. Harry, who knows the actual number of marbles in the jar, b, notes that Ashley’s estimate is within 15 marbles (inclusive) of the actual number of marbles. Which of the following inequalities represents the relationship between Ashley’s estimate and the actual number of marbles in the jar?
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document.write( "a) -15≤a-b≤15
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document.write( "b) a≤b+15
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document.write( "c) a≥b-15
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document.write( "d) a+b≥15 \n" );
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Algebra.Com's Answer #822066 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! It has to be A. \n" ); document.write( "There are two possibilities for the within 15--below or above. Only A takes this into account. B and C imply that it is unidirectional, and adding both estimate an actual number doesn't lead to anything useful. \n" ); document.write( "|a-b| <=15 would work fine, also. \n" ); document.write( " |