document.write( "Question 825733: if two complementary angles have a measure of x-9 and 3x+15, the smaller angle has a measure of ? \n" ); document.write( "
Algebra.Com's Answer #497549 by jim_thompson5910(35256)![]() ![]() ![]() You can put this solution on YOUR website! (x-9)+(3x+15) = 90\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x-9+3x+15 = 90\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "4x+6 = 90\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "4x = 90-6\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "4x = 84\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x = 84/4\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x = 21\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "-------------------------------------------------------\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x-9 = 21 - 9 = 12\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "3x+15 = 3*21+15 = 78\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "So the smaller angle is 12 degrees \n" ); document.write( " \n" ); document.write( " |