The 63 is the err in her explanation here.
Complementary angles, sum = 90
So 3y - 4 + 73 = 90
3y + 69 = 90
3y = 21
y = 7
Answer
y = 7
What lesson are we talking about I will be happy to help.
Heres the correct order from least to greatest: 3.9, 3 11/12, 3.98. To find the answer you divide 11 by 12 to see that is is .91,or 3.91 which is in between 3.9 and 3.98.
That is correct. how did you come up with that.