SOLUTION: if i have a 80 in my class, and i take a test that is 40% of my grade, what is the lowest grrade i can make to obtain a 75?
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Question 477574: if i have a 80 in my class, and i take a test that is 40% of my grade, what is the lowest grrade i can make to obtain a 75? Answer by jorel1380(3719) (Show Source):
You can put this solution on YOUR website! 80x.6=48
75-48=27
.4p=27
p=27/.4=67.5
The lowest grade you can get on the last test and preserve a 75 average is 67.5%..
