PLEASE HELP!!!! look at the picture below and explain your answer as well!!!

Mathematics

1 answer:

Inga [223]3 years ago

8 0

I think it is the first and last one

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The mean of 100 numerical observations is 51.28 what is the value of the sum of all 100 numbers

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3 years ago

I need help please :(

Anuta_ua [19.1K]

15x + 11x + 8x+5 = 180

34x + 5 = 180

34x = 180-5

34x = 175

x = 5.147

by substitution each value by of x by 5

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