Answer:
4 hours
Step-by-step explanation:
9÷3=1
1 hour for 3 pages
12÷3= 4
4 hours
Consider such events:
A - slip with number 3 is chosen;
B - the sum of numbers is 4.
You have to count 
Use formula for conditional probability:
1. The event 
consists in selecting two slips, first is 3 and second should be 1, because the sum is 4. The number of favorable outcomes is exactly 1 and the number of all possible outcomes is 5·4=20 (you have 5 ways to select 1st slip and 4 ways to select 2nd slip). Then the probability of event is
2. The event 
consists in selecting two slips with the sum 4. The number of favorable outcomes is exactly 2 (1st slip 3 and 2nd slip 1 or 1st slip 1 and 2nd slip 3) and the number of all possible outcomes is 5·4=20 (you have 5 ways to select 1st slip and 4 ways to select 2nd slip). Then the probability of event is
3. Then
Answer: 
Yes but there is a very low chance
This question cannot be answered with the details provided. How many coins are there to start with? Probability works by taking favorable outcomes divided by total outcomes. Without the total number of either, any question like this is impossible to solve.
BRAINLIEST PLEASE!!!
Answer:
0
Step-by-step explanation:
|15-7|-|14-6|
|8|-|8|
0
