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Svetradugi [14.3K]

2 years ago

15

Cory has received the following grades this term: 75, 87, 90, 88, 79. If he wishes to earn an 85 average, what must he score on

his final test?

1 answer:

Nat2105 [25]2 years ago

3 0

Answer:

A 91.

Step-by-step explanation:

$\frac{75+87+90+88+79+x}{6}=85\\\\\frac{419+x}{6}=85\\\\(\frac{419+x}{6})6=85*6\\\\419 + x = 510\\\\419-419+x=510-419\\\\\boxed{x = 91}$

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Ms. Pacheco = P
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Mr. Edwards = E
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