SOLUTION: A student's grade in a course is determined by 4 quizzes and 1 exam. If the exam counts twice as much as each of the quizzes, what fraction of the final grade is determined by the

Algebra ->  Proportions  -> Lessons -> SOLUTION: A student's grade in a course is determined by 4 quizzes and 1 exam. If the exam counts twice as much as each of the quizzes, what fraction of the final grade is determined by the       Log On

 

Hi, 

 x + x + x + x + 2x = 1

   6x = 1

    x = 1/6, fraction of the final grade determined by each quiz

Exam is 2(1/6) = 1/3

 1/6 + 1/6 + 1/6 + 1/6 + 1/3 = 4/6 + 1/3 = 1