First distribute the 2/3.
(2/3)n + (2/3)*6 = 10
(2/3)n + 4 = 10
Subtract 4 from both sides
(2/3)n = 6
Multiply both sides by (3/2) to clear the fraction
n = 9
Answer:
z=-60
Step-by-step explanation:
1/6z=-10
z=-10×6
z=-60
Answer:120
Step-by-step explanation:
calculate the sum of the negetive numbers 3x-40
=120
Answer:
After 16 months there will be a population of 1,944 insects.
Step-by-step explanation:
Since an insect population triples every 4 months, if the population started out with 24 insects, to determine how many insects would there be in 16 months, the following calculation must be performed:
X = 24 x 3 ^ (16/4)
X = 24 x 3 ^ 4
X = 1,944
Thus, after 16 months there will be a population of 1,944 insects.
Answer:
a) E = 2482.90
b) 99% Confidence interval: (41510.1,46475.9)
Step-by-step explanation:
We are given the following in the question:
Sample mean, 
=$43,993
Sample size, n = 90
Alpha, α = 0.051
Sample standard deviation, s = $9,144
a) The margin of error
Formula:
b) 99% Confidence interval:
Putting the values, we get,
