Answer:
answer d
Step-by-step explanation:
Answer: Because , therefore .
Answer:
100° and 80°
Step-by-step explanation:
Ratio means they are sort of multiples of a certain number (which I used X) and A is 5 times X and B is 4 times X. Since they are supplementary they sum 180°. After summing up both angles and equaling them to 180°, solve for X and substitute in the original equations
Answer:
45%
Step-by-step explanation:
9/20. 20* 5= 100. 9*5=45. 45/100=45%