A friend has a 84% average before the final exam for a course. That score includes everything but the final, which counts for 30% of the course grade. What is the best course grade your friend can earn? What is the minimum score would your friend would need on the final to earn a 75% for the course?

Question

Howard Harris

Mathematics

15 March, 01:30

A friend has a 84% average before the final exam for a course. That score includes everything but the final, which counts for 30% of the course grade. What is the best course grade your friend can earn? What is the minimum score would your friend would need on the final to earn a 75% for the course?

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Answers (1)

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Damon Williamson · Answer 1

Best grade = (84%) (0.7) + ((100%) (0.3)

=58.8+30

=88.8

What is the minimum score would your friend need on the final to earn 75% for the course

Let x = minimum course

84 (0.7) + 0.3x=75

0.3x=75-84 (0.7)

X=16/0.3

=54