document.write( "Question 229572: The measure of 2 supplementary angles are represented by (3x+10)degrees and (7x-40)degrees. Can you help me understand how to determine the measure of each angle? \n" ); document.write( "
Algebra.Com's Answer #170174 by stanbon(75887) ![]() You can put this solution on YOUR website! The measure of 2 supplementary angles are represented by (3x+10)degrees and (7x-40)degrees. Can you help me understand how to determine the measure of each angle? \n" ); document.write( "------------- \n" ); document.write( "Supplementary angles add up to 180 degrees \n" ); document.write( "------------- \n" ); document.write( "Equation: \n" ); document.write( "3x+10 + 7x-40 = 180 \n" ); document.write( "10x -30 = 180 \n" ); document.write( "10x = 210 \n" ); document.write( "x = 21 \n" ); document.write( "-------------- \n" ); document.write( "1st angle = 3x+10 = 3*21+10 = 73 degrees \n" ); document.write( "2nd angle = 7x-40 = 7*21-40 = 147-40 = 107 degrees \n" ); document.write( "-------------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |