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Going into the final exam, which will count as two tests, Brooke has test scores of 79, 82, 74, 59, and 96. What score
does Brooke need on the final in order to have an average score of 80?
Brooke needs a score of
....

Respuesta :

Medunno13

Let the score she needs be x.

[tex]\frac{79+82+74+59+96+2x}{7}=80 \\ \\ 79+82+74+59+96+2x=560 \\ \\ 2x=170 \\ \\ \boxed{x=85}[/tex]

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