SOLUTION: Homework question. A B grade has an overall average of 80%. I received scores of 55 and 72 on 75 point exams. My final is worth 150 points. What is the minimum score I need to

Question 885921: Homework question. A B grade has an overall average of 80%. I received scores of 55 and 72 on 75 point exams. My final is worth 150 points. What is the minimum score I need to receive a B in the class.
55/75+ 72/75 +x/150=240/300
127/150+x/150=240/300
127+x=240
x=113
Is this even close??
Thank you
Answer by JulietG(1812) (Show Source): You can put this solution on YOUR website!
You need 80% out of a possible 300 points (exams are 75, 75, final=150), or 240 points for a B
So far, you have 55 + 72 for a total of 127. You'll need 240 - 127 for a B.
240 - 127 = 113 points.
113/150 = 75.33% on the final.
.
Study hard!
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