Example 6.23 from Prealgebra, 6.2 Solve General Applications of Percent

Solve General Applications of Percent: example 6.23

In $2011,$ the California governor proposed raising community college fees from $$26$ per unit to $$36$ per unit. Find the percent increase. (Round to the nearest tenth of a percent.)

Work it out on paper first. Then open the solution one step at a time, and stop as soon as you can finish on your own.

Your turn

The book's Try It right after this example: same idea, new numbers. Only the answer is given.

In $2011,$ the IRS increased the deductible mileage cost to $55.5$ cents from $51$ cents. Find the percent increase. (Round to the nearest tenth of a percent.)

How did it go?

What are you asked to find?	the percent increase
Choose a variable to represent it.	Let $p =$ percent.
Find the amount of increase.
Find the percent increase.	The increase is what percent of the original amount?
Translate to an equation.
Divide both sides by 26.
Round to the nearest thousandth.
Convert to percent form.
Write a complete sentence.	The new fees represent a 38.4% increase over the old fees.

What are you asked to find?	the percent increase
Choose a variable to represent it.	Let $p =$ percent.
Find the amount of increase.
Find the percent increase.	The increase is what percent of the original amount?
Translate to an equation.
Divide both sides by 26.
Round to the nearest thousandth.
Convert to percent form.
Write a complete sentence.	The new fees represent a 38.4% increase over the old fees.

Solve General Applications of Percent: example 6.23

Solution

Your turn

Solve General Applications of Percent: example 6.23

Solution

Your turn