Mathematics, 30.11.2019 01:31 letyourmemesbedreams

Aclass of 28 students has 7 juniors and 21 seniors. the average (arithmetic mean) score of the juniors on a test was 73. the average score of the seniors on the test was y. the average score of the entire class on the test was 85. find y.

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Aclass of 28 students has 7 juniors and 21 seniors. the average (arithmetic mean) score of the junio...