miguelalpizar0 miguelalpizar0

12-10-2021
Mathematics

contestada

Louise got scores 88 and 78 on her first two tests. What score must she
make on her third test to keep an average of 80 or greater?

Respuesta :

shernande0554 shernande0554

12-10-2021

Answer:

You want the average of three scores to be at least 80:

(88 + 78 + x)/3 ≥ 80

88 + 78 + x ≥ 80(3)

166 + x ≥ 240

x ≥ 74

You must make at least 74 on the 3rd test to maintain an average of at least 80%

Step-by-step explanation:

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