The mean of 15 numbers is y.If each of the number is increased by 30, find the increase of the new mean in terms of y.The answer
i found is 30 but it isn't in terms of y. is the question wrong
1 answer:
Answer:
y+30
Step-by-step explanation:
the sum of the numbers is 15y
the new sum after increase each number by 30 is 15y+450
the new mean 15y+450/15
= y+30
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