Answer:
36 minutes
Step-by-step explanation:
The key is to get the same amount of time for each.
9 * 12 = 108
At 12 minutes per job,
in 108 minutes Alyssa could do
108/12 = 9 jobs
At 9 minutes per job,
Together in 108 minutes they could do
108/9 = 12 jobs
--------------------------
In 108 minutes Mirada does
12 - 9 = 3 jobs
108/3 = 36 minutes per job
Answer:15/27(third option is the correct answer)
Your answer is c. 0.5454545... because an irrational number is one that repeats itself.
Any number that ends with 0 or 5 is divisible by 5. If it ends with any other numbers such as 1 2, 3, 4, ,6, 7, 8, 9 then it is not divisible by 5. If a number is divisible by it means that the number can be divided by 5.
5, 10, 15, 20, 25, 1234567890, 9876543210, etc. are going to be divisible by 5 because they end or a 0.
So, look through your given options. Which answer choice has a 0 or a 5 at the end of the number? That's your answer. :)
Hope that helped. (:
