14x30=520. So, 520 divided by 24 = 21.6 . So, that means that you will need 22 packages of balloons and you will have 8 left over
Answer:
Step-by-step explanation-3:
Answer:
the mean and standard error of the mean are 200 and 2 respectively.
Step-by-step explanation:
Given that ;
the sample size n = 81
population mean μ = 200
standard deviation of the infinite population σ = 18
A population is the whole set of values, or individuals you are interested in, from an experimental study.
The value of population characteristics such as the Population mean (μ), standard deviation (σ) are said to be known as the population distribution.
From the given information above;
The sample size is large and hence based on the central limit theorem the mean of all the means is same as the population mean 200.
i.e
= 200
∴ The mean = 200
and the standard error of the mean can be determined via the relation:




Therefore ; the mean and standard error of the mean are 200 and 2 respectively.
Answer:

Step-by-step explanation:
Consider linear differential equation 
It's solution is of form
where I.F is integrating factor given by
.
Given: 
We can write this equation as 
On comparing this equation with
, we get 
I.F =
{ formula used:
}
we get solution as follows:

{ formula used:
}
Applying condition:

So, we get solution as :

Answer:
x=25
Step-by-step explanation:
2x+40=90
90-40=50
50 divided by 2 is 25
x=25