How many people should she expect not to show, Mathematics

Laura is planning her wedding. She expects 230 people to attend the wedding, but she has been told that around 5% typically don't show. About how many people should she expect not to show?

Find 5% of 230 through multiplying 230 by the decimal equivalent of 5% (0.05); 230 × 0.05 = 11.5 people. Because you cannot have .5 of a person, round up to 12 people. A general mistake is to use 0.5 for 5%; 0.5 is in fact 50%.

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