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LiRa [457]
3 years ago
5

Help I think it's divideing dishes and time but idk how to do it

Mathematics
1 answer:
Andreas93 [3]3 years ago
8 0
200 divided by 30 equals 6.66 dishes per minute. It would take 37.55 minutes to do 250 dishes.
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22. The mean of 15 observations is 32. Find the resulting mean, if each observation is: (i) increased by 3 (ii) decreased by(v)
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Answer:

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Step-by-step explanation:

If each observations in a particular set is increased or decreased by a uniform or fixed number, the mean of the resulting output will also increase by the same amount

Hence,

For 15 observations whose mean is 32

If each observation is increased by 3, then the resulting mean will also increase by 3 ; hence, new mean = 32 + 3 = 35

If each observation is decreased by v ; the resulting mean would also decrease by v ;

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If each observation is increased by 60% ; the resulting mean will be ;

(1 + 60%) * initial mean

(1 + 0.6) * 32

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What is the median of 70,50,30,40
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