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OpenStudy (anonymous):
jim has grades of 84 ,65,and 76on threemath tests . what grade must he obtain on the next test to have an average of exactly 80 for the four tests
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OpenStudy (whpalmer4):
If the tests are all worth the same amount, then the average will be (test1 + test2 + test3 + test4)/4 because there are 4 tests. You know tests 1-3, and you know the average score you want. Write the simple equation and solve for test4.
OpenStudy (whpalmer4):
What does Jim need to score to have an overall average of 80?
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