document.write( "Question 414921: Two angles are supplementary and one is 40 degrees more than three times the other. find the smaller angle. \n" ); document.write( "
Algebra.Com's Answer #290962 by praseenakos@yahoo.com(507)![]() ![]() You can put this solution on YOUR website! supplementary angles add up to 180 degrees \n" ); document.write( " let the smaller angle be x degrees \n" ); document.write( "then the other is 3x + 40 degrees \n" ); document.write( "their sum should be 180 degrees\r \n" ); document.write( "\n" ); document.write( "so x + 3x + 40 = 180\r \n" ); document.write( "\n" ); document.write( "==> 4x + 40 = 180\r \n" ); document.write( "\n" ); document.write( "==> 4x = 180 - 40\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "==> 4x = 140 degrees\r \n" ); document.write( "\n" ); document.write( "==> \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "==> x = 45 degrees\r \n" ); document.write( "\n" ); document.write( "smaller angle is 45 degrees \n" ); document.write( " |