Answer:
<h2>w=6</h2>
Step-by-step explanation:
7w-6=3w+18 I expanded the bracket
+6 on both sides
7w=3w+24
-3w on both sides
4w=24
divide both sides by 4
w=6
B is your answer.
Because 7 times 8 is 56 and 7 times 3 is 21.
38/45. <span><span>49</span>+<span>25 </span></span><span>=<span>( 4 × 5) + (2 × 9) 9 × 5 </span></span><span>= <span>38/<span>45
</span></span></span>
Using the normal distribution, it is found that there is a 0.1357 = 13.57% probability that the total amount paid for these second movies will exceed $15.00.
In a <em>normal distribution</em> with mean
and standard deviation
, the z-score of a measure X is given by:
- It measures how many standard deviations the measure is from the mean.
- After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X.
- For n instances of a normal variable, the mean is
and the standard error is 
In this problem:
- Mean of $0.47, standard deviation $0.15, hence

- 30 instances, hence

The probability is <u>1 subtracted by the p-value of Z when X = 15</u>, hence:

Considering the n instances:



has a p-value of 0.8643.
1 - 0.8643 = 0.1357.
0.1357 = 13.57% probability that the total amount paid for these second movies will exceed $15.00.
A similar problem is given at brainly.com/question/25769446