document.write( "Question 843955: The measure of A is 100°. Angles A and B are supplementary. What is mB? \n" ); document.write( "
Algebra.Com's Answer #508423 by Fombitz(32388)\"\" \"About 
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Supplementary means sum to 180.
\n" ); document.write( "\"A%2BB=180\"
\n" ); document.write( "\"B=180-A\"
\n" ); document.write( "\"B=180-100\"
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