Mrs. Davis earns $100 per week plus 6% commission on all of her sales. If she sells a house this month worth $120,000, what is h
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The population of a town has approximately doubled every 17 years since 1950.
the equation P= where Po is the population of the town in 1950, is used to model the population, P, of the town t years after 1950.
When t=17 yrs
P=2
for 1 year
The equation becomes
P = -------------(1)
Our original equation is
----------------------------------(2)
equating expression 1 and 2
Cancelling from both sides we get
t/17=k
⇒k=t/17 is the solution.
Given:
Consider the equation is
To find:
The value of x.
Solution:
We have,
Using properties of exponents, we get
On comparing both sides, we get
Add 16 on both sides.
Multiply both sides by -1.
Therefore, the value of x is 8.