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29-01-2020
Mathematics

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A student earns scores of 80, 87, and 82 on the first three of four tests. If the student wants to achieve a quiz average of 85, what score must she achieve on the last quiz?

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Soph20204 Soph20204

29-01-2020

Answer:

91

Step-by-step explanation:

85= [tex]\frac{80+87+82+x}{4}[/tex] then multiply the 4 over and subtract 80, 87, and 82 to find x which gives you 91

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