Answer:
26
Step-by-step explanation:
80 divided by three = 26.666666
26 times 3 = 78
2 leftover
Answer:
about 5.9%
Step-by-step explanation:
We assume that the original amount of Pb-210 present at death decays at the given rate. The fraction (f) remaining is multiplied by 1/2 every 22 years, so can be modeled by ...
f = (1/2)^(t/22) . . . . . where t is in years after death
Then, for t=90, the remaining fraction is ...
f = (1/2)^(90/22) ≈ 0.05868 ≈ 5.9%
Answer:
Monthly payment= $550.25
Step-by-step explanation:
First, we need to calculate the value of the loan:
Loan= 27,635 - 5,000
Loan= $22,635
<u>Now, the monthly payment:</u>
Interest rate (i)= 0.0778/12= 0.006483
n= 4*12= 48 months
Loan (PV)= $22,635
<u>We need to use the following formula:</u>
Monthly payment= (PV*i) / [1 - (1+i)^(-n)]
Monthly payment= (22,635*0.007483) / [1 - (1.006483^-48)]
Monthly payment= $550.25