Answer:
8x+25=5x+35 (x=10/3)
Step-by-step explanation:
The equation for Store A would be: y(cost) = 8x(days) + 25
The equation for Store B would be: y = 5x + 35
So, since he wants the cost to be the same, 8x+25=5x+35
Answer: c) 0.75
Step-by-step explanation:
Given : The probability of choosing a black marble is P(Black)= 0.36.
The probability of choosing a black and then a white marble is P( Black and white) = 0.27.
Then by conditional probability ,
The probability of the second marble being white if the first marble chosen is black = ![P(\text{white }|\text{Black})=\dfrac{\text{P( Black and white)}}{\text{P(Black}}](https://tex.z-dn.net/?f=P%28%5Ctext%7Bwhite%20%7D%7C%5Ctext%7BBlack%7D%29%3D%5Cdfrac%7B%5Ctext%7BP%28%20Black%20and%20white%29%7D%7D%7B%5Ctext%7BP%28Black%7D%7D)
![=\dfrac{0.27}{0.36}=\dfrac{27}{36}=0.75](https://tex.z-dn.net/?f=%3D%5Cdfrac%7B0.27%7D%7B0.36%7D%3D%5Cdfrac%7B27%7D%7B36%7D%3D0.75)
Therefore , the probability of the second marble being white if the first marble chosen is black = 0.75
Answer:
the answer is B
Step-by-step explanation:
448 cm squared
And 209pi cm squared