18/4 reduces to 9/2, while 24/32 reduces to 3/4
15.7 if you multiple but if you add its 8.2
Answer: The required probability is 0.3.
Step-by-step explanation: Given that a small combination lock on a suitcase has 5 wheels, each labeled with the 10 digits from 0 to 9.
An opening combination is a particular sequence of 5 digits with no repeats.
We are to find the probability of a person guessing the right combination.
If the 5 digits do no repeat, then we have
10 options for first digit, 9 options for second digit, 8 options for third digit, 7 options for fourth digit and 6 options for fifth digit.
Let A denote the event that the combination is a particular sequence of 5 digits with no repeats.
Also, let S be the sample space for the experiment.
Then, we have
Therefore, the probability of even A is given by
Thus, the required probability is 0.3.
Answer:
x = -5
Step-by-step explanation:
Start by adding the 5x to each side of the equation to the left to get...
-25 = 5x + 25 + 5x
Then you would add 25 to each side of the equation to get...
0 = 10x + 25 + 25
Adding on, you would simplify this step to get...
0 = 10x +50
You would now have to make the x variable on one side alone so you would subtract 50 from both sides of the equation again to get...
-50 = 10x
Finally you would divide both sides of the equation by 10 to get x alone...
-50/10 = 10x/10
And simplify that to get...
x = -5