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Over four evenings, Ms.Cross grades 6 papers, 8 papers, 9 papers, and 7 papers. She wants to grade an average of 9 papers a night. What would be a reasonable estimate of how man…

Over four evenings, Ms.Cross grades 6 papers, 8 papers, 9 papers, and 7 papers. She wants to grade an average of 9 papers a night. What would be a reasonable estimate of how man…
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Over four evenings, Ms.Cross grades 6 papers, 8 papers, 9 papers, and 7 papers. She wants to grade an average of 9 papers a night. What would be a reasonable estimate of how many papers Ms.Cross must grade on the fifth day to reach that goal?

A)11
B)15
C)18
D)19

asked
User Vinit Patel
by
8.8k points

1 Answer

1 vote
The answer would be 15. The average of 6, 7, 8, 9, and 15 is 9. Hope this helps.
answered
User Rivalus
by
8.6k points
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