Answer:
The numbers are 26.5, 53 and 17.5.
Step-by-step explanation:
97=x+(x-9)+2x
97+9=4x
106/4=4x/4
x= 26.5
x-9 = 17.5
2x= 53
D on both ...................
Answer:
The distribution will be approximately normal, with mean 350,000 and standard deviation 25,298.
Step-by-step explanation:
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean
and standard deviation
, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean
and standard deviation
.
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
Population:
Suppose the selling price of homes is skewed right with a mean of 350,000 and a standard deviation of 160000
Sample of 40
Shape approximately normal
Mean 350000
Standard deviation 
The distribution will be approximately normal, with mean 350,000 and standard deviation 25,298.
I hope this helps you
x=3. (27x+2)
x=81x+6
80x=-6
x=-3/40
Answer:the price for the item now it's 6.75
Step-by-step explanation:
Origin price is 45=100% after reduction comes to 85% =x
X stands for the unknown value of the reduction therefore
45=100%
X=85%
45*.85=100x
After calculation you realised the value of x reduction value it's 38.25
Hence, original price is 45 your less from the value reduced 38.25 therefore the value of the item is 6.75