What grade does Bob need on his final to pass his math class?

Course Queries Syllabus Queries 3 years ago

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manpreet Tuteehub forum best answer Best Answer 3 years ago

Bob's teacher has a syllabus where the grading breakdown is as follows:

  • Homework: 10%
  • Tests (2): 60%
  • Final Exam: 30%

 

  • Bob receives all 10% from the homework
  • Bob receives 78/100 on Test 1 (78%)
  • Bob receives 94/100 on Test 2 (94%)

What grade does Bob need on the final exam to get an A in the class (Assuming an A is 90-100%)?


I'm having troubles with Test 1 and Test 2. How do I find out how much percent out of 60 they get?

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manpreet 3 years ago

These are all weighted grades.

Homework Average: 100 Test Average: 86

Homework Weighted Average: 100×0.10=10100×0.10=10 Test Weighted Average: 86×0.6=51.686×0.6=51.6

(100×0.10)+(86×0.60)+(x×0.30)=90∴(100×0.10)+(86×0.60)+(x×0.30)=90

Solve for xx:

x=94.7x=94.7∴ Bob must get at least a 95% on the final exam to get an A in the course


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