There are two different ways we can read your question.
Each way has a different answer.
Here it is both ways:
Way #1: (12 + 4n) / 3 = 8
Multiply each side by 3 : 12 + 4n = 24
Subtract 12 from each side: 4n = 12
Divide each side by 4: n = 3 .
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Way #2: 12 + 4n/3 = 8
Subtract 12 from each side: 4n/3 = -4
Multiply each side by 3: 4n = -12
Divide each side by 4: n = - 3
I think the correct answer from the choices listed above is the last option. The axiom that allows x(10) to be written 10x would be the commutative property of multiplication. It <span>states that numbers can be added or multiplied in any order. Hope this answers the question. Have a nice day.</span>
Given that y varies directly with x in the above table, if the value of x is 5, the value of y is 15.
<h3>How to calculate direct variation?</h3>
According to this question, a 2-column table with 5 rows is given.
- Column 1 is labeled x with entries 1, 3, 6, 9, 12
- Column 2 is labeled y with entries 3, 9, 18, 27, 36
If y varies directly with x, the mathematical representation is as follows:
y = kx
Since y = 3, when x = 1
3 = k × 1
k = 3
The relationship between x and y is as follows: y = 3x
Therefore, if the value of x is 5, the value of y = 3 × 5 = 15.
Learn more about direct variation at: brainly.com/question/14254277
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Solution
We are given two ranks
First, in 2018, rank of 145 out of 435 students
Secondly, in 2019, rank of 160 out of 404 students.
(A) In which year did you have the higher percentile ranking?
To answer this, we need to calculate the percentiles for the two rankings and comapre them
By comapring the percentile ranking, we realize that year 2019 has higher percentile (39.6%) comapred to year 2018 (33.33%)
(B)
If you had the data on the cumulative GPA of each student at the end of the spring semester in 2018, what would the mean and the median each tell you and how would you compute each measure?
The mean and the median tells us about the measure of the center of the dataset
To compute the mean, we us the formula