Mathematics, 03.01.2020 20:31 teresaparraz34
Aclass of 30 students took a science test. 10 students had an average (arithmetic mean) score of 85. the other students had an average score of 70. what is the average score of the whole class?
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Aclass of 30 students took a science test. 10 students had an average (arithmetic mean) score of 85....
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