Answer:
Step-by-step explanation:
on the picture
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The answer is the third option, it will run out in 8 days.
Answer:
a(10) = 3^9 = 19683
Step-by-step explanation:
In this sequence each new term is equal to 3 times the previous term. Thus, 3 is the common ratio. The first term is 1.
The general formula for the nth term of a geometric sequence i
a(n) = a(1)*r^(n -1), where r is the common ratio.
Here, a(n) = 1*3^(n - 1), and so
the 10th term is
a(10) = 1*3^(10 - 1), or
a(10) = 3^9 = 19683
Interest = principle * rate * time...
I = PRT...we are going to rearrange this because we are looking for the principle...
I / (RT) = P
I = 22.40
R = 2.8%...turn to a decimal = 0.028
T = 1
sub and solve
22.40 / (0.028(1) = P
22.40 / 0.028 = P
800 = P....amount of original deposit is $ 800 <==
