Kim got 82%, 75%, and 74% on the first 3 tests. What grade does she need on the 4th test to have an average of 80% on all 4 tests? A. 77% B. 80% O c. 85% D. 89% E. 100%

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asked Oct 4, 2022 169k views

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Kim got 82%, 75%, and 74% on the first 3 tests.

What grade does she need on the 4th test to have an average of 80% on all 4 tests?
A. 77%
B. 80%
O c. 85%
D. 89%
E. 100%

Mathematics
high-school

Tushar Mishra asked

by Tushar Mishra

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2 Answers

9 votes

Answer:

Explanation:

Mackwerk answered Oct 5, 2022

by Mackwerk

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3 votes

Answer:

Explanation:

Add all percentages together, then divide by how many you added.

ToddJCrane answered Oct 8, 2022

by ToddJCrane

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