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

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) (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

Hope the solution helped. Sometimes you need more than a solution. Contact fcabanski@hotmail.com for online, private tutoring, or personalized problem solving (quick for groups of problems.)

RELATED QUESTIONS
A student scores 75% and 70% on two midterm tests where the first is worth 20% and the... (answered by lwsshak3)

The final grade for a class is calculated by taking 75% of the average test score and... (answered by fcabanski)

Suppose a professor counts the final exam as being equal to each of the other tests in... (answered by JulietG)

Suppose a professor counts the final exam as being equal to each of the other tests in... (answered by solver91311)

Danielle�s test scores are 78, 84, 86, and 88. The final exam will count as 2/3 of the... (answered by richwmiller)

Danielle's test scores are 86,80,84, and 90. The final exam will count as two-thirds of... (answered by stanbon)

Divina's test scores are 86,80,84,90. The final exam will count as 2/3 of the final... (answered by Cromlix)

Going into the final exam,which will count as two-thirds of the final grade,Mike has test (answered by josgarithmetic,ikleyn,greenestamps,mccravyedwin)

to earn an A in a course, a student must get at least a 90 average on four tests and a... (answered by rfer)