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18-10-2021
Mathematics

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What is the average of -30 -15 -20 55

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18-10-2021

Answer:

[tex]{ \tt{ = \frac{ (- 30) + ( - 15) + ( - 20) + 55}{4} }} \\ \\ = { \tt{ \frac{ - 10}{4} }} \\ \\ = { \tt{ - \frac{5}{2} }}[/tex]

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