SOLUTION: Two Tests Only. Professor Davis counts his midterm as 2/3 of the grade, and his final as 1/3 of the grade. Jason scored only 64 on the midterm. What range of scores on the fin

Question 29113: Two Tests Only.
Professor Davis counts his midterm as 2/3 of the grade, and his final as 1/3 of the grade. Jason scored only 64 on the midterm. What range of scores on the final exam would put Jason�s average between 70 and 79 inclusive

Answer by checkley72(6) (Show Source): You can put this solution on YOUR website!
Points for the midterm exam is 2/3 X 64 = 42.67.
Therefore to get a 70 composit score he need to score an additional 27 1/3 points on his final test. But this score only counts for 1/3 of his grade.
For the 70 average he needs an additional 27 1/3 points. But he only gets 1/3 credit therefore the 27 1/3 must be divided by 1/3 = 82. Therefore to get a 70 he needs a final score of at lest 82 on the final test.
For the 79 average he needs an additional 36 1/3 points. But again he only gets 1/3 of credit therefore the 36 1/3 must be divided by 1/3 = 109.
Lets assume he needs a perfect score for the 79 average.

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