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?

Answer 1

What is the highest C possible?

Answer 2

79

Answer 3

So what do I do next

Answer 4

(88 + 78 + 98 + 88 + 78 + x)/6 = 79

430 + x = 474

x = 44

Answer 5

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

Answer 6

You're welcome.

You method works too.