Answer:
This experiment is like throwing 3 balls independently at random into 3 boxes labeled 1, 2, 3.
The probability that the number 105 can be formed, with rearrengement if necessary, is 0.006
Step-by-step explanation:
The probability that a 105 (in that order) happens is equal to the probability of any other arrangement of 105 (in fact, every number is equally likely to be selected without rearrangement).
The total amount of rearrengements for 105 is 3! = 6 (the first digit can be anyone from 1, 0 or 5, for the second one we have only 2 possibilities and from the third one only one). The probability for a specific rearrengement to be picked is (1/10)³ = 1/1000, because we only have 1 favourable case over 10 for each of the 3 digits, and we need the 3 to be favourable, thus we need to power 1/10 by 3.
Therefore, the probability that a rearrengement of 105 is obtained is 6* 1/1000 = 3/500 = 0.006.
How many jumping jacks does carla do in one day?
carla does 25 jumping jacks 3 times per day
25 + 25 + 25 = 75 jumping jacks per day
carla does 75 jumping jacks per day, how many will she do in 7 days?
7 x 75 = 525
Carla will do 525 jumping jacks in 7 days
Answer:
its B
Step-by-step explanation:
Answer:
5+7x
Step-by-step explanation:
1/2(6-4x) +2 +9x
3-2x+2+9x
5+7x
Answer:
see attached picture please