I believe the answer is 5. Hope this was right for you.
Answer:
A
Step-by-step explanation:
Let's check
The formula is 3 *6^(n-1)
The first generation had 3 rabbits
3*6(1-1) = 3*6^0 = 3*1 =3
That works
Try it again with the 2nd generation
n is the number of generation
3*6^(2-1)= 3*6^1 = 18
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We can deduce the formula
The initial number of rabbits is 3
Each time we multiply by 6
So for the generation number n the formula will be :
3*6^(last generation-first generation)
3*6^(n-1)
Answer:
x=4.8
Step-by-step explanation:
6=1.25x
=
x=4.8
It's annuity problem
To solve your question use the formula of the present value of annuity ordinary which is
Pv=pmt [(1-(1+r)^(-n))÷r]
Pv present value?
PMT yearly payments 18000
R interest rate 0.09
N time 20 years
So
Pv=18,000×((1−(1+0.09)^(−20))÷(0.09))
pv=164,313.82
