Answer:
the answer is 7/9
Step-by-step explanation:
The value of x is 13 for the first attachment.
First you'd subtract .58 from 2.23 to get the price of the notebook.
2.23 - .58 = 1.65
(2.23×2)+1.65= 6.11
Now subtract 6.11 from ten to figure out the change amount.
10 - 6.11 = 3.89
Answer: 0.0336
Step-by-step explanation:
Given : The distribution of cholesterol levels in teenage boys is approximately normal with mean :
Standard deviation :
The formula for z-score is given by :-
For x=225
The p-value =
The probability that a teenage boy has a cholesterol level greater than 225 =0.0336
Cost : Selling Price
175 : 300
175 ÷ 25 : 300 ÷ 25
7 : 12