Mathematics, 09.11.2019 03:31 kishahall630

Ahigh school mathematics teacher can grade a set of exams in 5 hours working alone. if their student teacher them, it will take them 3 hours to grade the exams together. how long would it take the student to grade them exams if they worked alone?

type your answer rounded to two decimal places below
it would take the student teacher hours to grade alone.

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Ahigh school mathematics teacher can grade a set of exams in 5 hours working alone. if their student...