Answer:
60
Step-by-step explanation:
200*0.30=60
Multiply the percent's by the total cost.
Answer:
99.89% of students scored below 95 points.
Step-by-step explanation:
Problems of normally distributed samples are solved using the z-score formula.
In a set with mean
and standard deviation
, the zscore of a measure X is given by:

The Z-score 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. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
In this problem, we have that:

What percent of students scored below 95 points?
This is the pvalue of Z when X = 95. So



has a pvalue of 0.9989.
99.89% of students scored below 95 points.
Answer:
50
Step-by-step explanation:
So, you do 45 divided by 30. When u do that, u get 1.5. Then, u do 75 divided by 1.5 and u get 50! Hope this helps :))
13/45, or option A, is the correct answer.
Answer:
3x + 18
Step-by-step explanation:
The 3 is multiplied by each number in the parentheses.