Answer:
1310.4
Step-by-step explanation:
1872 x 0.7 = 1310.4
2.25 + 2.50 = 4.75
4.75 + 4.75 = 9.50
So you can only buy one game.
Answer:
No solutions! :)
Step-by-step explanation:
To find the number of solutions in a problem we must solve it.
x+2x+7=3x-7
Firstly, combine common terms:
3x+7=3x-7
We can subtract 3x from both sides:
7=-7
The solution is 7=-7, which is no solution.
When a number is equal to a number in a solution, it has no solutions!
:))
Answer:
Given two events A and B of a sample set :-
P[A] = 0.20
P[not B]=0.40
![P[B/A]=0.25](https://tex.z-dn.net/?f=P%5BB%2FA%5D%3D0.25)
To find P[A or B]:
![P[A or B] = P[A] + P[B] - P[A \cap B]](https://tex.z-dn.net/?f=P%5BA%20or%20B%5D%20%3D%20P%5BA%5D%20%2B%20P%5BB%5D%20-%20P%5BA%20%5Ccap%20B%5D)
......[1]
Calculate for ![P[B]](https://tex.z-dn.net/?f=P%5BB%5D)
and ![P[A \cap B]](https://tex.z-dn.net/?f=P%5BA%20%5Ccap%20B%5D)
P[B] = 1- P[not B]
Substitute the value P[not B] we get;
P[B] = 1-0.40 = 0.60
![P[A \cap B] = P[B/A] \cdot P[A]](https://tex.z-dn.net/?f=P%5BA%20%5Ccap%20B%5D%20%3D%20P%5BB%2FA%5D%20%5Ccdot%20P%5BA%5D)
Substitute the given values we get;
![P[A \cap B] = 0.25 \cdot 0.20 = 0.05](https://tex.z-dn.net/?f=P%5BA%20%5Ccap%20B%5D%20%3D%200.25%20%5Ccdot%200.20%20%3D%200.05)
Then;
![P[A or B] = 0.20+0.60-0.05 = 0.80-0.05 =0.75](https://tex.z-dn.net/?f=P%5BA%20or%20B%5D%20%3D%200.20%2B0.60-0.05%20%3D%200.80-0.05%20%3D0.75)
Therefore, the value of P[A or B] is, 0.75.
Answer:
Step-by-step explanation: 26+2c=312
Now we solve for c.
Subtract 26 on both sides giving 2c=286
So c=143
