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A​ student's course grade is based on one midterm that counts as 10​% of his final​ grade, one class project that counts as 5​% of his final​ grade, a set of homework assignments that counts as 45​% of his final​ grade, and a final exam that counts as 40​% of his final grade. His midterm score is 60​, his project score is 80​, his homework score is 75​, and his final exam score is 78. What is his overall final​ score? What letter grade did he earn​ (A, B,​ C, D, or​ F)? Assume that a mean of 90 or above is an​ A, a mean of at least 80 but less than 90 is a​ B, and so on.

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Answer:

His overall final score is a 73, which means that that student recieved a letter grade of a C.

Step-by-step explanation:

First, we are finding the mean of the scores to average everything out.

So, start by adding up all the scores given: 60+80+75+78=293.

Then, divide that sum by the number of scores given: 293/5=73.25, or rounded to a whole number is a 73.

In most schools, a 73 is a C, so this students letter grade for this course is a C.

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