Math  /  Word Problems

QuestionYou have grades of 86 and 91. What do you need on the final to average at least 90? Also, what final grades risk dropping below a B (80)?

Studdy Solution
Calculate the grades on the final that will cause the final average to be less than80.
Finalexamgrade=80times3(86+91)=63Final\, exam\, grade =80 \\times3 - (86 +91) =63If you get a grade less than63 on the final exam, your final average will be less than80, and you will lose your 'B' in the course.

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