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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%

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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12 votes
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%

asked
User Tushar Mishra
by
8.1k points

2 Answers

9 votes

Answer:

C

Explanation:

answered
User Mackwerk
by
8.3k points
3 votes

Answer:

C

Explanation:

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

answered
User ToddJCrane
by
8.2k points
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