Umm simplified it would be 30t=s. 6*5t=s
Step-by-step explanation:
Ratio 9:2, therefore total number of shares is 11.
because 9+2 = 11
total cards = 8,250
8,250/11 = 750
This is the value for one of the shares.
As the ratio is 9:2 we can find:
9 X 750 : 2 X 750
To see what everyone has won.
T-shirts : 2 X 750 = 1,500.
Hope you understand how it's done, if not leave a comment and I'll try to be more thorough
Answer: 0.1037
Step-by-step explanation:
Given : Mean : 
Standard deviation : 
The formula to calculate the z-score is given by :-

For x = 97 miles per day ,

For x = 107 miles per day ,

The P-value =

Hence, the probability that a truck drives between 97 and 107 miles in a day = 0.1037