Elizabeth got these grades on three tests: 72, 80 and 82. She had one more test to take. She wanted an average of 80 for the four tests. What score must she get on the fourth test?

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asked Dec 17, 2022 12.0k views

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Elizabeth got these grades on three tests: 72, 80 and 82. She had one more test to take. She wanted an average of 80 for the four tests. What score must she get on the fourth test?

Mathematics
high-school

Peller asked

by Peller

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Answer:

she at least needs an 87 for her average to be an 80

Explanation:

87+72+80+82=321

321/4= 80.25

Maxisam answered Dec 23, 2022

by Maxisam

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