We are given f(x) = 5x
and we are to find inverse of f(x).
Step 1:
Replace f(x) by y.
So,
y = 5x
Step 2:
Isolate x
So,
x = y/5
Step 3:
Replace x by f'(y)
So,
f'(y) = y/5
Step 4:
Replace all occurrences of y by x.
So,
f'(x) = x/5
Therefore, the inverse of f(x) = 5x is f'(x) = x/5
Answer:

Step-by-step explanation:
We have been given an equation
. We are asked to solve our given equation.
First of all, we will add
on both sides of equation to separate x variable on one side of equation.


Now, we will make a common denominator.


Add numerators:


Upon multiply both sides of our equation by
, we will get:



Therefore, the solution for our given equation is
.
10% of 320 = 32
So 9.8% of 320 should be some number between 31 and 32