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On three examinations, you have grades of 85, 78, and 84. There is still a final examination, which counts as one grade In order to get an A your average must be at least 90. If you get 100 on the final, what is your numerical average? (Type an integer or a decimal)

Respuesta :

Answer:

The average of the provided grades are 86.75

Step-by-step explanation:

Consider the provided information.

On three examinations, you have grades of 85, 78, and 84. In order to get an A your average must be at least 90.

In the last exam you get 100 marks now calculate the average by using the formula:

[tex]\frac{\text{Sum of observations}}{\text{Number of observations}}[/tex]

[tex]\frac{85+78+84+100}{5}[/tex]

[tex]\frac{347}{5}[/tex]

[tex]86.75[/tex]

86.75 is less than 90 so you will not get A.

The average of the provided grades are 86.75

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