Melissa's grade in her math class is determined by three tests and a final exam. To determine the grade for a student in this class, the instructor will add the four scores together and divide this sum by 4 to obtain a percentage. This percentage must be at least 80 for a grade of B. If Melissa's three test scores are 76, 68, and 84, what is the minimum score she needs on the final exam to obtain a B grade? (show work
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Equations and inequalities describe the relationship between two mathematical expressions.
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A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.
Melissa's grade in her math class is determined by three tests and a final exam. To determine the grade for a student in this class, the instructor will add the four scores together and divide this sum by 4 to obtain a percentage. This percentage must be at least 80 for a grade of B. If Melissa's three test scores are 76, 68, and 84, what is the minimum score she needs on the final exam to obtain a B grade? (show work)
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