Jeannette bought a swimsuit on sale for $13.95. The original price was $31. What was the discount rate?

1. First find the amount of discount: 31 minus 13.95 equals 17.05. 2. Let r equal the discount rate, so the amount of discount equals r times the original price. 3. Substitute the known values: 17.05 equals r times 31. 4. Divide both sides by 31 to get r equals 0.55, or 55%. _Source: OpenStax Elementary Algebra (CC BY 4.0), Ch 3 "Math Models", section 3.2 Solve Percent Applications_