<u>Given</u>:
Given that there are 10 marbles in a bag. 4 are blue, 3 are black, 2 are white and 1 is red.
The marbles are selected by not replacing the drawn ones.
We need to the probability of selected a black marble and then a white marble without replacement.
<u>Probability</u>:
Let B denote the black marble.
Let W denote the white marble.
The probability of selecting a black marble is 
The probability of selecting a white marble without replacement is 
The probability of selecting a black marble and then a white marble without replacement is given by
Substituting the values, we get;
Thus, the probability of selecting a black marble and then a white marble without replacement is 
Answer:
With 4 times the number of machines, it would take 8 hours
Step-by-step explanation:
Answer:
3000
Step-by-step explanation:
Hi there!
This is very simple, so here's how to complete this math problem.
It looks like you're taking money away, so...
If you have 10$ and you spent 2 of them, the word 'spent' is a subtraction word, so we would subtract.
10$ - 2$ = 8$
So, therefore, you would still have 8 dollars left. :)
Hope this helps! :D
Answer:
-2
Step-by-step explanation:
So we want to find the value of:
Simply add:
Thus, drop the word SUM on -2.
Further notes:
To use the number line to solve, first start by placing your point on -6.
Since we are <em>adding</em> 4 to -6, we move to the right. Thus, move from -6 four spaces to the right.
If you do so correctly, you will end up at -2, the same answer we acquired previously.
