document.write( "Question 154692: An angle has measure x(degrees). Find the average of the measures f a complement and a supplement of the angle. \n" ); document.write( "

Algebra.Com's Answer #113986 by orca(409) $\"\"$ $\"About$

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The complement of angle x is 90° - x
\n" ); document.write( "The supplement of angle x is 180° - x.
\n" ); document.write( "So their average is
\n" ); document.write( " $\"%28%2890+-+x%29%2B%28180+-+x%29%29%2F2\"$
\n" ); document.write( "= $\"%2890+%2B+180+-2x%29%2F2\"$
\n" ); document.write( "= $\"%28270+-+2x%29%2F2\"$
\n" ); document.write( "= $\"270%2F2+-+%282x%29%2F2\"$
\n" ); document.write( "= $\"135-x\"$ \r
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