3 slices
This is because 1/4 of 12 is 3.
This is right because 3 x 4 = 12.
The answer is x = 6
Explanation:
First, you must assume that 5x-10=20. Next, you add 10 to 20, which makes the equation 5x=30. Next, divide 30 by 5, which then makes the equation x=6. When you substitute 6 in the original equation, it works, because 5(6)-10 equals 20.
-(3x-2)=-4(x+1)-4
-3x+2=-4x-4-4
-3x+4x=-4-4-2
x=-10
We are asked to find the probability that a data value in a normal distribution is between a z-score of -1.32 and a z-score of -0.34.
The probability of a data score between two z-scores is given by formula
.
Using above formula, we will get:
![P(-1.32](https://tex.z-dn.net/?f=P%28-1.32%3Cz%3C-0.34%29%3DP%28z%3C-0.34%29-P%28z%3C-1.32%29)
Now we will use normal distribution table to find probability corresponding to both z-scores as:
![P(-1.32](https://tex.z-dn.net/?f=P%28-1.32%3Cz%3C-0.34%29%3D0.36693-0.09342)
![P(-1.32](https://tex.z-dn.net/?f=P%28-1.32%3Cz%3C-0.34%29%3D0.27351)
Now we will convert
into percentage as:
![0.27351\times 100\%=27.351\%](https://tex.z-dn.net/?f=0.27351%5Ctimes%20100%5C%25%3D27.351%5C%25)
Upon rounding to nearest tenth of percent, we will get:
![27.351\%\approx 27.4\%](https://tex.z-dn.net/?f=27.351%5C%25%5Capprox%2027.4%5C%25)
Therefore, our required probability is 27.4% and option C is the correct choice.