document.write( "Question 1085354: Topic:Arithmetic Mean\r
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document.write( "1. Find the value of b when the arithmetic mean of b+2 and 4b+5 is b+2 \n" );
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Algebra.Com's Answer #699423 by htmentor(1343)![]() ![]() You can put this solution on YOUR website! The arithmetic mean (average) is given by ( (b+2) + (4b+5) )/2, and this is equal to b+2: \n" ); document.write( "( (b+2) + (4b+5) )/2 = b+2 \n" ); document.write( "Solve for b: \n" ); document.write( "5b + 7 = 2b + 4 \n" ); document.write( "b = -1 \n" ); document.write( "Check: \n" ); document.write( "(1 + 1)/2 = -1 + 2 = 1 \n" ); document.write( " |