statistics

A​ student's course grade is based on one midterm that counts as 5​% of his final​ grade, one class project that counts as 25​% of his final​ grade, a set of homework assignments that counts as 35​% of his final​ grade, and a final exam that counts as 35​% of his final grade. His midterm score is 80​, his project score is 92​, his homework score is 79​, and his final exam score is 79. 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.

His overall final score is __?
​(Type an integer or a decimal rounded to one decimal place as​ needed.)

His letter grade is?

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  1. just multiply each partial score by its weight.

    80*0.05 + 92*0.25 + 79*0.35 + 79*0.35 = ____

    now figure the letter grade.

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