SOLUTION: Once the lowest grade is dropped, what score does the following student need to score on the final exam to earn an A- for this course? ( 90% = A- ) Module 9 – 72% Module 10

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Question 743106: Once the lowest grade is dropped, what score does the following student need to score on the final exam to earn an A- for this course? ( 90% = A- )
Module 9 – 72%
Module 10 – 86%
Module 11 – 90%
Module 13A – 87%
Module 13B – 92%
Module 14 – 88%
Word Problem Score – 94%
Final Exam - ?

Answer by fcabanski(1391) About Me  (Show Source):
You can put this solution on YOUR website!
Drop the 72. This is an average problem: avg = sum/(# of numbers). Call the final exam grade x since it's unknown.


AVG = 90 = (86+90+87+92+88+94+x)/7


90 = (893+x)/7


630=537+x


93=x


If the question asked what was the needed score to earn at least an A-, then the answer would be:


93 <= x

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