document.write( "Question 1006283: The average of the measures of angle X, it's complementary angle, and it's supplementary angle is 80 degrees. What is the measure of the complement of angle X?
\n" ); document.write( "A. 30
\n" ); document.write( "B.60
\n" ); document.write( "C.90
\n" ); document.write( "D.120
\n" ); document.write( "E.180 \n" ); document.write( "

Algebra.Com's Answer #622440 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

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The average of the measures of angle X, it's complementary angle, and it's supplementary angle is 80 degrees.
\n" ); document.write( "Find x
\n" ); document.write( " $\"%28%28x+%2B+%2890-x%29+%2B+%28180-x%29%29%29%2F3\"$ = 80
\n" ); document.write( "multiply both sides by 3
\n" ); document.write( "x + (90-x) + (180-x) = 240
\n" ); document.write( "Combine like terms
\n" ); document.write( "x - x - x + 90 + 180 = 240
\n" ); document.write( "-x + 270 = 240
\n" ); document.write( "270 - 240 = x
\n" ); document.write( "30 = x
\n" ); document.write( "x = 30 degrees
\n" ); document.write( ":
\n" ); document.write( "What is the measure of the complement of angle X?
\n" ); document.write( "90 - 30 = 60 degrees
\n" ); document.write( " \n" ); document.write( "

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