Tamera has test scores of 88,78,98,88, and 78. She was told that her final test grade average is the highest C possible as a whole number. What was her last test score?
What is the highest C possible?
79
So what do I do next
(88 + 78 + 98 + 88 + 78 + x)/6 = 79
430 + x = 474
x = 44
Ok thanks I got that when you asked me what was the highest C possible. Great to know it's correct!
I did it another way. Similar though!
I added the 5 known test scores up
88 + 78 + 98 + 88 + 78 = 430
79 * 6 = 474
474 - 430 = 44
You're welcome.
You method works too.
To find Tamera's final test score, we need to calculate the average of her test scores and identify the highest whole number that is still considered a C grade.
First, let's calculate the average of Tamera's test scores.
To do this, add up all the test scores:
88 + 78 + 98 + 88 + 78 = 430
Now, divide the sum by the total number of test scores Tamera has:
430 / 5 = 86
So, the average of Tamera's test scores is 86.
Now, let's determine the highest whole number that is still considered a C grade.
The grading scale can vary, but for this example, let's assume the grading scale is as follows:
A: 90-100
B: 80-89
C: 70-79
D: 60-69
F: 0-59
Since Tamera was told that her final test grade average is the highest C possible, we need to find the highest whole number in the range of 70-79.
Therefore, Tamera's last test score must be the highest number within that range.
Hence, Tamera's last test score should be 79, as it is the highest whole number within the range of C grade (70-79).