SOLUTION: A test grade is worth four homework grades. The homework average of a certain person is 95%, and their test average is an 85%. What is the student's overall average? So far, I hav

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: A test grade is worth four homework grades. The homework average of a certain person is 95%, and their test average is an 85%. What is the student's overall average? So far, I hav      Log On


   



Question 520248: A test grade is worth four homework grades. The homework average of a certain person is 95%, and their test average is an 85%. What is the student's overall average?
So far, I have:
.85 (___) + .95 (4) = x (___)

Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


Let represent the number of homework assignments. Then let represent the number of tests. Presuming 100 percentage points per assignment and/or test, then the total score for homework would be and the total points for tests would be and then the overall average would be:



And that is as far as you can go without knowing at least a ratio of homework assignments to tests.

John

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