Problem

Solve the problem. See Examples.EXAMPLE Solving Percent EquationsSolve each problem.(a) Wh...

Solve the problem. See Examples.

EXAMPLE Solving Percent Equations
Solve each problem.
(a) What is 15% of 600?
Let n = the number. The word of indicates multiplication.
Thus, 90 is 15% of 600.
(b) 32% of what number is 64?
(c) 90 is what percent of 360?
Thus, 90 is 25% of 360.
EXAMPLE Solving Applied Percent Problems
Solve each problem.
(a) A DVD with a regular price of $18 is on sale this week at 22% off. Find the amount of the discount and the sale price of the disc.
The discount is 22% of 18, so we must find the number that is 22% of 18.
The discount is $3.96, so the sale price is found by subtracting.
(b) A newspaper ad offered a set of tires at a sales price of $258. The regular price was $300. What percent of the regular price was the savings?
The savings amounted to $300 − $258 = $42. We can now restate the problem: What percent of 300 is 42?
The sale price represents a 14% savings.