We are given a key pad assuming that the numbers are of 10 options from 0 to 9. IN thsi case, guessing the 3 digit pin number can be determined via counting method. The first number has 10 options so as second and third. Hence the total number of options is 10^3 or 1000. The probability of getting the pin teh first time is 1/1000 or 0.001.
Answer:
ok
Step-by-step explanation:
Answer:
x = -6
Step-by-step explanation:
11. B.13
12. A.-28
13. A.-18
14. D.-9
Answer:
12 minutes
Step-by-step explanation:
Let us suppose the number of minutes per month is 720. ( i have assumed this data from my self, you use any data you want, remember the procedure)
Now , Mark and his brother share the minutes every month equally.
So, clearly, Mark and his brother would get 360 minutes each every month.
Now, Mark has 360 minutes each month
therefore, Mark has 360/30 minutes per day
= 12 minutes each day.