Mathematics, 31.07.2019 14:00, isabelsmhl

In a certain school, course grades range from 0 to 100. adrianna took 4 courses and her average course grade was 90. roberto took 5 courses. if both students have the same sum of course grades, what was roberto's average?

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In a certain school, course grades range from 0 to 100. adrianna took 4 courses and her average cour...