The probability of randomly getting first a red marble and then a blue marble is:
P = 0.083
<h3>
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:
6
Step-by-step explanation:
Answer:
2.5 times faster
Step-by-step explanation:
The cost per hour of method 1 is $25, while the cost per hour of method 2 is $10. In order for method 1 to be the better method, it must have a productivity, in units per dollar, that is equal or greater than the productivity of method 2:
![A\frac{units}{hour} *\frac{hour}{\$25} \geq B\frac{units}{hour} *\frac{hour}{\$10}\\0.04A\geq 0.1B\\A \geq 2.5 B](https://tex.z-dn.net/?f=A%5Cfrac%7Bunits%7D%7Bhour%7D%20%2A%5Cfrac%7Bhour%7D%7B%5C%2425%7D%20%5Cgeq%20B%5Cfrac%7Bunits%7D%7Bhour%7D%20%2A%5Cfrac%7Bhour%7D%7B%5C%2410%7D%5C%5C0.04A%5Cgeq%200.1B%5C%5CA%20%5Cgeq%202.5%20B)
The productivity A of method 1, in units per hour, must be 2.5 times greater than the productivity of method 2, which means that method 1 needs to be 2.5 times faster than method (2) to be the better method.
Answer:
52.61
Step-by-step explanation:
First let turn 9.6% into a decimal
0.096
Then,
48 x 0.096 = 4.608 {Round} 4.61
48 + 4.61=52.61
Shejrjjsjdjejrnrnrn what is this (sorry737384 sir of