Answer:
look at the attached image
Step-by-step explanation:
Answer:
In three years, cost (Value) = 47.70
Step-by-step explanation:
When the decrease is relative to the last value, it is exponential.
Depreciations are usually exponential.
In three years,
Value = 70*(1-0.12)^3
= 47.70
The first term is 2 and the 20th term is 1048576 .
<u>Step-by-step explanation:</u>
Here we have , If the sum of the first 12 terms of a geometric series is 8190 and the common ratio is 2. We need to Find the first term and the 20th term. Let's find out:
We know that Sum of a GP is :
⇒
So ,Sum of first 12 terms is :
⇒ 
⇒ 
⇒ 
⇒ 
Now , nth term of a GP is
⇒ 
So , 20th term is :
⇒ 
⇒ 
⇒ 
Therefore , the first term is 2 and the 20th term is 1048576 .
Answer:
Rs 2,500
Step-by-step explanation:
He has spent Rs1850 + Rs150 = Rs2000
if Rs2000 = 100%
X = 125%
By cross multiplication, we get;
100x = 2000 * 125
x = 250000/100
x = Rs 2,500