You left 20% tip. all you do is divide the tip,0.60, by the total , 3.
Answer:
60 degrees
Step-by-step explanation:
The angles all have to add up to 180, so you can do

8/10 = 4/5 would be the answer
Answer:
Step-by-step explanation:
Using the formula
Initial -final/initial =%/100
89-72/89 =%/100
17/89 =%/100
Making %subject of the formula
% =17*100/89
So % =1700/89
%= 19.101
Therefore rounding off the answer we have
X=19%