The average of Manny's three tests is an 84. What must he get on a 4th test to raise his averageto a 87?

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asked Sep 10, 2020 99.7k views

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The average of Manny's three tests is an 84. What must he get on a 4th test to raise his averageto a 87?

Mathematics
middle-school

Wnm asked

by Wnm

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1 Answer

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90 because 84 plus 90 divided by 2 is 87.

Joe Seifi answered Sep 14, 2020

by Joe Seifi

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