SOLUTION: If i'm making a 74 in a class and then i take a final which counts for 25% of our grade. If i make a 77 on the final, what is my new average?

Question 547969: If i'm making a 74 in a class and then i take a final which counts for 25% of our grade. If i make a 77 on the final, what is my new average?
Answer by JBarnum(2146) (Show Source): You can put this solution on YOUR website!
example: 100 points for class
75 for everything before final exam and 25 for exam
.74(75)=55.5
if you get a 0% on the test its 55.5/100=55.5%
77%=.77 .77(25)=19.25
if you get a 77% on the test its (55.5+19.25)/100=74.75%
if you get a 100% on the test its 80.5/100=80.5%

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