Question

The school board announced they are increasing all athletic fees by a fixed percent.
A formula for determining the new fee is as follows:
c= b-a
----- <- (this is a fraction btw, just very poorly shown)
a
where
b= new athletic fee
a= old athletic fee
c= percent increase

If the new athletic fee is $22, and the old fee is $20. How much is the percent increase in fees? Write your answer in a percent, please.

Answer 1

Use the given formula:
a=20, b=22
\(c=\frac{b-a}{a}=\frac{22-20}{20}\times 100\%=?\)

Answer 2

mathmate already give you the answer? what is the problem

Answer 3

what is 22-20?