A case of 24 water bottles costs $3.99. Rounded to the nearest cent, what is the price per bottle?
A$0.17
B$0.16
C$0.18
D$0.15
Answer & Solution
Correct answer: A. $0.17
1. Divide the total cost by the number of bottles: 3.99 divided by 24.
2. Carrying the division to the thousandths place gives approximately 0.166.
3. Rounding 0.166 to the nearest cent (hundredth) means looking at the thousandths digit, 6, which rounds the hundredths digit up.
4. This gives $0.17, so the price per bottle is 17 cents.
_Source: OpenStax Prealgebra (CC BY 4.0), Ch 5 "Decimals", section 5.2 Decimal Operations_
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