Answer:
22 years
Step-by-step explanation:
Well we know the formula for simple interest is
I = PRT
I = interest earned
P = initial balance
R = rate
T = time
We want to solve for time here....so rearrange for T
T= I/(PR
)
We have
P = 825
R = .057
And I = current balance - initial balance = 1859.55 - 825 = 1034.55
So plugging all those in we have
T = 1034.55/(825×.057
)
T = 1034.55/47.025
T = 22
It was held for 22 years.
Answer:
a)
b)
c)
Step-by-step explanation:
Part a
For this case we know that the degrees of freedom are:
And we want a right tailed test so then we need to find in the t distribution with degrees of freedom =15 a critical value who accumulate 0.05 of the area in the right and we got:
Part b
For this case the significance is the degrees of freedom are:
And since is a left tailed test the critical value for this case would be:
Part c
For this case the significance is and the degrees of freedom are:
And since is a two tailed test the critical values for this case would be:
Answer:
y=1x+9
Step-by-step explanation:
Answer:
d
Step-by-step explanation:
12
4 hours because when you set it up as an equation u get 40+60x=280 and it equals 4.