Showing work:
x+(x-4)+4x=62
6x-4=62
6x=66
x=11
The numbers are: 11, 7, 44
The books are $5, and the magazines are $10. I’m not sure which way you want it explained but since magazines are twice the price of books, you can solve the equation 3b + 2b = 25. This gives you b=5 which you just multiply by 2 giving you the price of a magazine.
Answer:
0.32493
Step-by-step explanation:
We have been given that John's commute time to work during the week follows the normal probability distribution with a mean time of 26.7 minutes and a standard deviation of 5.1 minutes.
We are asked to find the probability that the commute time for a randomly selected day will be between 28 and 34 minutes.
First of all, we will find z-score corresponding to 28 minutes and 34 minutes. Then, we will find area under normal curve between both z-scores.



Now, we need to find the probability between z-score of 1.43 and 0.25.
.
Using formula
, we will get:



Therefore, the probability, that the commute time for a randomly selected day will be between 28 and 34 minutes, is 0.32493.
109 I hope I helped!! have a great day
To be honest the answer is going to be the same.
Well because first of all their is a X in one number instead of the other. Second of all we don't know how much the X equals. And ya that's all.