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Mathematics 14 Online
OpenStudy (anonymous):

please help me its due tomorrow

OpenStudy (anonymous):

With?

OpenStudy (anonymous):

4h grade math on estimating averages

OpenStudy (anonymous):

17,19,21

OpenStudy (anonymous):

hello?

OpenStudy (anonymous):

to find the average(mean), you add them all up and divide by how many there are. so its \[\frac{ (17+19+21) }{ 3 }=\]

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