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A jacket costs 60 dollars and a coupon takes 30 percent off. How much comes off?
AIt is 20 dollars
BIt is 18 dollars
CIt is 30 dollars
DIt is 90 dollars
Answer & Solution
Correct answer: B. It is 18 dollars
1. Translate the sentence directly: n equals 30 percent of 60 dollars.
2. Change the percent to a decimal, so 30 percent becomes 0.30.
3. Multiply 0.30 by 60 to get 18 dollars off.
4. Answering 20 dollars divides 60 by 3 instead of taking three tenths of it.
_Source: OpenStax Intermediate Algebra (CC BY 4.0), Ch 2 "Solving Linear Equations", section 2.2 Use a Problem Solving Strategy_