Mathematics, 07.04.2020 16:02 coreyscott1281

Jose wants to have an average of 80 for his 4 exams. Each exam is scored on a scale of 0 to 100. His first three exam scores are: 87, 72, 85. What does Jose need to score on the 4th exam to have a mean of 80 on all 4 exams?

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Jose wants to have an average of 80 for his 4 exams. Each exam is scored on a scale of 0 to 100. His...

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