SOLUTION: If I have a 67 in a class, and I want at least a 70, and test grades count for 20% of your final grade, what will I need to get on the test?

Question 934904: If I have a 67 in a class, and I want at least a 70, and test grades count for 20% of your final grade, what will I need to get on the test?
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
(1 - 0.20)*67 + 0.20x = 70
x = ( 70 - (1 - 0.20)*67 ) / 0.20
x = 82
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answer:
you'll need to get at least an 82 on the test
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