Answer:
i don't know. it doesn't depend my major. so hard for me
A. x=0
Step-by-step explanation:
x+20+10x=20+9x
cancel equal terms
x+10x+9x
add x to 10x
11x=9x
move variable to left
11x-9x=0
subtract 11x to 9x
2x=0
divide Both sides by 2
x=0
there are 4 A and 3 B.
so the ratio is 4 : 3
100 minutes?
lol
Answer: 5
