A lunch bill comes to $14.40 and the customer wants to leave a 15% tip. How much should the tip be?
A$2.16
B$1.44
C$2.88
D$2.06
Answer & Solution
Correct answer: A. $2.16
1. Change 15% to a decimal: 0.15.
2. Multiply the decimal by the bill: 0.15 x 14.40.
3. This gives 2.16, so the tip should be $2.16.
4. $1.44 is a 10% tip and $2.88 is a 20% tip, so neither matches the 15% asked for.
_Source: OpenStax Prealgebra (CC BY 4.0), Ch 6 "Percents", section 6.2 Solve General Applications of Percent_
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