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12-05-2019
Mathematics

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Help with this please

Help with this please class=

Respuesta :

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12-05-2019

Answer:

77

Step-by-step explanation:

Average: avg = (n₁ + n₂ + n₃ +...)/n

Plug in: 80 = (82 + 89 + x + 74 + 78)/5, where x = points scored in game 3

Add: 80 = (323 + x)/5

Multiply: 400 = 323 + x

Subtract: x = 77

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