SOLUTION: I have a 60,67,74,72 on grades, They are worth 75% of my grade the final is 25%. Could I have the chance to pass with a C? And if I do what grade would I need to make on the final?

Question 1010204: I have a 60,67,74,72 on grades, They are worth 75% of my grade the final is 25%. Could I have the chance to pass with a C? And if I do what grade would I need to make on the final?
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
One way to do this is to count the score on the 4 tests, and that is 273.
The average score on those 4 tests is 273/4=68.25
You can now use that 3 times and the final score 1 time to get an average of 70, if that is what a C is. I am assuming that.
Therefore, 68.25+68.25+68.25+x=280, because 4*70=280.
The first 3 add up to 204.75.
subtract that from 280, and you need a 75.25 on the final.

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