Atriangle has an angle that measures 85 degrees. the other two degrees are in a ratio of 7: 12. what are the measures of those two angles?

give the answers and explain why.

3x + 7x = 10010x = 100    we combined like terms10x/10 = 100/10   we divide each side by 10x = 10    now we will substitute this value into our two angles to find out exactly how many degrees they each are. 3x 3(10) is 30 degrees7x7(10) is 70 degrees. To check...add up all 3 angles and be sure they equal 180 degrees30 + 70 + 80 = 180180 = 180