The probability of randomly getting first a red marble and then a blue marble is:
P = 0.083
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How to find the probability?</h3>
There are:
- 3 blue marbles
- 2 red marbles
- 4 yellow marbles.
For a total of 9 marbles.
The probability of getting a red marble is equal to the quotient between the number of red marbles and the total, so:
P(red) = 2/9
Then the probability of getting a blue marble is equal to the quotient between the number of blue marbles and the total, but because we already took one marble, now the total is 8.
P(blue) = 3/8
The joint probability is given by the product:
P = (2/9)*(3/8) = 0.083
If you want to learn more about probability:
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Answer:
-2
Step-by-step explanation:
Put the given values of x and y in the equation, and solve for "a".
-40 = a(1 +3)(1 -2)(1 -6) = 20a
-40/20 = a = -2
The value of "a" is -2.
Order of operations rules (PEMDAS) reguire that we mult. here before adding or subtracting:
4x-3(x+5) = 4x - 3x -15
Then we have x - 15 (answer)
Answer:
1. Write It Out:
Jay 4: Hena 3 : Sally 6
Jay is 24 years old.
2. Solve
So first you find 24/4 to get 6. This means Jays age was divided by 6 to get his ratio number. Showing that Hena's and Sally's is divided by 6 as well to get there ratios. Now what you need to do is mulitipy Hena and Sallys ratio by six to find there age's.
Hena: 3x6= 18 years old
Sally: 6x6= 36 years old
(Jay: 4x6= 24 years old)
Now to find there total age add them up...
18+36+24= 78
A. Sally is 36
B. 78
Answer:
Step-by-step explanation:
The equation of a line can be written in the form of y=mx+c, where m is the gradient and c is the y-intercept.
Using the above formula,
Substitute the value of m into the equation:
To find the value of c, substitute a pair of coordinates.
When x=6, y=1,
Thus, the equation of the line is y=⅙x.