Answer:
you should use a equals sign
Step-by-step explanation:
because above is shows the same equation and the part that you need answered has a equals sign.
Answer:
Percent Change Formula: [(new - old)/old] * 100
Step-by-step explanation:
New - old
80 - 20 = 60
Difference between new - old divided by old
60/20 = 3
Previous quotient times 100
3*100 = 300
Percent Change is 300%
Check your answer
300% of 20 is 60
20 + 60 = 80
Answer:
R=18
Step-by-step explanation:
83 - 65 = 18,
18 + 65 - 83
so therefore r = 18
Solve for x by simplifying both sides of the equation, then isolating the variable.
x = 4
Answer:
The point estimate for 
is 8.5 hours.
Step-by-step explanation:
The Central Limit Theorem estabilishes that, for a random variable X, with mean and standard deviation 
, a large sample size can be approximated to a normal distribution with mean and standard deviation 
.
In this problem
We are working with a sample of 81 adults, so the point estimae of the mean is the mean number of weekly hours that U.S. adults use computers at home.
So, the point estimate for is 8.5 hours.
