document.write( "Question 977271: What is the arithmetic means between the first term a and the last term b? \n" ); document.write( "
Algebra.Com's Answer #598786 by rothauserc(4718)\"\" \"About 
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If there are n arithmetic means between a and b, total terms
\n" ); document.write( "will be n+2
\n" ); document.write( "last term = first term + (number of terms - 1)d, where
\n" ); document.write( "d = common difference
\n" ); document.write( "b = a + (n+2 -1)d
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\n" ); document.write( "if n= 1
\n" ); document.write( "b = a + 2d
\n" ); document.write( "2d = b - a
\n" ); document.write( "d = (b - a) / 2
\n" ); document.write( "the terms are a, a + ((b - a) / 2), b
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\n" ); document.write( "if n= 2
\n" ); document.write( "b = a + 3d
\n" ); document.write( "3d = b - a
\n" ); document.write( "d = (b - a) / 3
\n" ); document.write( "so the terms are a, a + ((b - a) / 3), a + ((b - a) / 3) + ((b - a) / 3), b
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