SOLUTION: On the first 3 tests of his chemistry class, Omar got an average score of 85.
What does he need on the next test to have an overall average of 87?
Algebra.Com
Question 926860: On the first 3 tests of his chemistry class, Omar got an average score of 85.
What does he need on the next test to have an overall average of 87?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
assuming 4th test has the same weighting as the first three...
x = 348 - 255 = 93
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