Question

plz plz plz plz plz plz plz plz plz plz plz plz plz plz help me!

Answer 1

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Here, we have,
( x + 2x + 1 +2x + 5 + 2x + 9)/4 = 30
Or, 7x + 15 = 120
Or, 7x = 120 - 15 = 105.
Or, x = 105/7 = 15.

Now, mean of last two observations is
[2(15) + 5 + 2(15) + 9]/2
= (30 + 5 + 30 + 9)/2
= 74/2 = 37

Hence, mean of last two observations is 37.

Hope this helps,.

If helps, please mark it as brainliest ^_^

Answer 2

hiii

whre r u from

me too 9th grade