Answer:
31.40
Step-by-step explanation:
3.14 x 10
= 31.40
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Answer:
Step-by-step explanation:
3(y-6)=3y-18
which can be expressed as
2y-18+y
The number of people increased by 2.
This means as a ratio it is now 6/4 as many as originally planned.
6/4 can be reduced to 3/2.
The time and the number of people are inversely proportional, so the food would last 2/3 ( inverse is flipping the original ratio over) the original length of time.
This means the length of time the food lasts is reduced by 1/3, which is 33.3%
The standard error of the mean is 12.
The standard error of the mean points to the standard deviation of the distribution of a sample mean obtained from a population.
The standard error S.E of the mean can be calculated by using the formula:

where;
- standard deviation
= 24 - sample size n = 4


S.E = 12
Learn more about the Standard error of the mean here:
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