Given:
In 2010, the population of a town = 2000
Every year, it increase by 1.5%
To find the equation P(t) which represents the population of this town t years from 2010.
Formula
If a be the original population of a town and it increases by b% every year, after t year the population will be

Now,
Taking, a =2000, b = 1.5 we get,

or, 
Hence,
The population of this town t years from 2010 P(t) =
, Option D.
Answer:
y = 6
Step-by-step explanation:
Given that y varies directly with x then the equation relating them is
y = kx ← k is the constant of variation
To find k use the condition y = 3 when x = 9, then
k =
=
=
, thus
y =
x ← equation of variation
When x = 18, then
y =
× 18 =
= 6
Answer:
21
Step-by-step explanation:
Answer:
79/8
Step-by-step explanation:
19 3/4 = 79/4
79/4 / 2 is same as 79/4 * 1/2
79/8
Answer: 79/8